| 354 г. | The earliest mention of the Bulgarians is in the Anonymous Roman chronograph |
| 499 г. | Attacks of the Bulgarians throughout the Balkan Peninsula |
| 515 г. | Invasion of the Bulgarians on the Balkan Peninsula |
| 540 г. | Invasion of the Bulgarians on the Balkan Peninsula |
| 545-555 г. | Annual invasions of the Slavic in the Balkans |
| 558 г. | Bulgarian attack led by Zabergan in the vicinity of Constantinople |
| 581-586 г. | Slavic attacks in the lands south of the Danube river |
| 586 г. | First Slavic siege of Thessalonica |
| 602 г. | Campaign of the Byzantine general Peter against the Slavic in Dakia |
| 604 г. | Second Slavic siege of Thessalonica |
| 615 г. | Third Slavic Siege of Thessalonica |
| 618 г. | Fourth Slavic siege of Thessalonica |
| 626 г. | Siege of Constantinople by Avars, Bulgarians, Slavs and Persians |
| 632 г. | Birth of Old Great Bulgaria |
| 635 г. | Envoy of Khan Kubrat to Emperor Heraclius and conclusion of a treaty between Bulgaria and Byzantium |
| 668 г. | Settlement of the Bulgarians led by Alceco in Northern Italy |
| 668-700 г. | Asparuh, inn of the Bulgarians |
| 676-678 г. | Two-year war of the Slavic tribes against Thessalonica |
| 680 г. |
The Battle of Ongla ended with a victory over the Byzantines army led by Constantine IV Pogonatus (668–685). |
| 681 г. | Creation of the Bulgarian state, with Pliska as its capital. |
| 682-684 г. | Kuber's settlement in Macedonia and his attempt to conquer Thessalonica |
| 688-689 г. | War with Byzantium |
| 700 или 701 г. | The probable death of Khan Asparukh in the war with the Khazars |
| 700-721 г. | Tervel Inn Management |
| 705 г. | March of Khan Tervel to Constantinople and restoration of Justinian II on the throne. Joining the Zagora district to Bulgaria. |
| 708 г. | Justinian II failed attempt to retake Zagore |
| 712 г. | Khan Tervel's campaign in Eastern Thrace |
| 716 г. | Treaty between Khan Tervel and the new Byzantine Emperor Theodosius III |
| 718 г. | Defeat of the Arabs near Constantinople by Tervel's troops. |
| 755-775 г. | Campaigns of Constantine V Kopronimus against Bulgaria |
| 768-777 г. | Reign of the Khan Telerig |
| 775 г. | Khan Telerig kills the Byzantine spies |
| 777-803 г. | Reign of Khan Kardam |
| 789 г. | The Bulgarian army defeats a Byzantine detachment on the valley of the Struma river |
| 792 г. | Victory of the Bulgarian army at Markeli fortress |
| 803-814 г. | Reign of the Krum |
| 805 г. | Accession of the Middle Danubian Slavs to Bulgaria |
| 807 г. | Unsuccessful campaign of Nikiphir I Genikus against Bulgaria |
| 808 г. | Khan Krum's victory over the Byzantines along the valley on the Struma river |
| 809 г. | Capture of Sredets by Khan Krum |
| 26 юли 811 г. | Defeat of the Byzantines in the Varbish pass |
| 812 г. | Advance of the Bulgarian army in Thrace. They take over Mesemvria |
| 813 г. | Victory over the Byzantines at Versinikia. Han Krum reached the walls of Constantinople |
| 13 април 814 г. | Death of Khan Krum |
| 814-831 г. | Reign of Khan Omurtag |
| 815 г. | Khan Omurtag concluded a 30-year peace with Byzantium |
| 823 г. | Intervention of Khan Omurtag in suppressing the rebellion of Thomas the Slav in Byzantium |
| 824 г. | War in the northeast with the Khazars, after which the northeast border is established along the Dnieper river |
| 827-829 г. | Conflict with the Frankish Empire. Joining the the breakaway Slavs to Bulgaria |
| 831-836 г. | Reign of Khan Malamir |
| 836-852 г. | Reign of Khan Persiyan |
| 837 г. | War with Byzantium and capture of Philippi sity |
| 839-842 г. | The first Bulgarian-Serbian war |
| 852-889 г. | Reign of Khan (Knyaz) Boris |
| 853 г. | War between Bulgaria and the Kingdom of Germany |
| 854 г. | Wars with Serbia and Croatia |
| 855-856 | War between Bulgaria and Byzantium |
| 855 г. | The Slavic script was created |
| 856 г. | Peace treaty - Byzantium regains Philippopolis, Debelt, Anchialo and the Zagore area |
| 860 г. | Ecclesiastical and diplomatic mission of Constantine and Methodius the Khazars |
| 861 г. | Ecclesiastical and diplomatic mission of Constantine to the Alans |
| 863 г. | Constantine, Methodius and their disciples arrive in Velegrad (the capital of Great Moravia) |
| 863 г. | War between Bulgaria and Byzantium |
| 864-866 г. | Conversion of the Bulgarians |
| 865 г. | Unsuccessful rebellion of 52 boyars against conversion |
| 866 г. | Bulgarian mission in Rome and papal legation in Pliska |
| 867-869 г. | Constantine and Methodiy in Rome |
| 14февруари 869г. | Saint Cyril died in Rome |
| 869 г. | Methodius was ordained archbishop of Pannonia |
| 4 март 870 г. | Decision of the Council of Constantinople to put The Bulgarian Church under the supremacy of The Patriarchate of Constantinople |
| 873 г. | Methodiy was ordained archbishop of Great Moravia |
| 879-880 г. | A new ecumenical council at Constantinople and confirmation of the independence of the Bulgarian archdiocese |
| 6 април 885 г. | Methodiy dies in Velegrad |
| 885-886 г. | Expulsion of the disciples of Cyril and Methodiy from Great Moravia |
| 886 г. | Clement, Nahum and Angelarius arrive in Bulgaria |
| 886-893 г. | Teaching and literary activities of Kliment in Kutmichevitsa and to Naum in Pliska |
| 889 г. | Resignation of Prince Boris, proclamation of Vladimir Rasate as prince |
| 889-893 г. | Administration of Vladimir Rasate |
| 893 г. | At the council in Preslav, Simeon was proclaimed prince |
| 893-927 г. | Rule of prince (king) Simeon |
| 893 г. | Preslav Council - the Slavic language becomes official |
| 893 г. | Naum was sent to Ohrid to replace Clement after his ordination as an archbishop |
| 894-896 г. | First war between Bulgaria and Byzantium |
| 896-899 г. | Second war between Bulgaria and Byzantium |
| 896 г. | Victory of the Bulgarians at Bulgarofigon and conclusion of a truce |
| 900 г. | Naum retired to the Ohrid monastery, later named St. Naum |
| 901-902 г. | Attack of the Bulgarians in the western parts of the Balkans peninsula (surroundings of Durrës) |
| 904 г. | Conclusion of a peace treaty with Byzantium and expansion of Bulgaria in the southwest |
| 2 май 907 г. | Knyaz Boris dies |
| 23 декември 910г | Saint Naum dies |
| 913 г. | War with Byzantium and Siege of Constantinople; It's Simeon proclaimed king of the Bulgarians |
| 914 г. | The Bulgarian troops ravaged Thrace and Macedonia and capture Edirne |
| 914-915 г. | Bulgarian troops invade the Dračka and Thessalonica themes |
| 27 юли 916 г. | Saint Clement dies |
| 20 август 917 г. | King Simeon defeats the Romans at Acheloi |
| 917 г. | Defeat of the Byzantines at Katasirti (near Constantinople) |
| 917 или 918 г. | The Bulgarian archdiocese becomes an independent patriarchate, Simeon gets a new title |
| 918 г. | Bulgarian troops invade Hellas, destroy Thebes and take part of the population away |
| 920 г. | Bulgarian troops reach the Dardanelles and a city of Lampsak in Asia Minor |
| 921 г. | The Bulgarian troops maintain a victory at Pigi |
| 922 г. | Bulgarian troops devastate the town of Viza (to Constantinople) |
| 922 г. | Bulgarian embassy to the Arabs with a proposal for joint action to capture Constantinople |
|
924 г. |
Inclusion of Serbia within Bulgaria |
| 9 септември 924г. | Meeting of King Simeon with Emperor Romanus I Lakapin Krai Constantinople |
| 926 г. | Negotiations between envoys of Pope John X and Tsar Simeon for the coronation of Simeon and the elevation of a Bulgarian patriarch |
| 926 или 927 г. | Unsuccessful war with the Croatian king Tomislav |
| 27 май 927 г. | Tzhar Simeon dies |
| 927-970 г. | Reign of Tsar Peter I |
| 927 г. | Conclusion of a peace treaty with Byzantium. Marriage of Tsar Peter with Maria (Irina) and restoration of the border from 904, recognition of the titles "king" and "patriarch" |
| 928-930 г. | Revolts of Ivan and Michael |
| 927(930) г. | Restoration of the Serbian principality |
| 934 г. | First Magyar invasion of Bulgarian lands. The next ones are in 943,948,958. |
| 18 август 946 г. | St. Ivan of Rila dies |
| 965 г. | Fruitless negotiations between the Bulgarians and the Germans Emperor Otto I |
| 965 г. | Agreement with the Magyars - they are provided with free access to Byzantine territory |
| 967 г. | Nicephorus II Phocas refused to pay the tax according to the contract of 927. Campaign of the Byzantine Emperor in Thrace |
| 968 г. | First march of the Kiev prince Svetoslavv against the Bulgarians - captured 80 fortresses along the Danube river. Bulgarian-Byzantine relations are restored. |
| 969 г. | Second campaign of Prince Svetoslav. Reign of Emperor John Tzimischius (969-976) |
| 30 януари 970 г. | Tsar Peter I dies |
| 970-971 г. | Reign of Tsar Boris II |
| 970 г. | First defeat of Prince Svetoslav at Arkadiopol |
| 970 г. | Movement of comitopools (David-Kostur, Prespa; Moisei-Strumica; Aron-Sredec; Samuil-Vidin) |
| 971 г. | Campaign of Tsimishii, captures Preslav and captures Tsar Boris II, three-month siege of Druster, accession of northeastern Bulgaria and Thrace to Byzantium |
| 976 г. | Ioan Tsimishii dies, the Bulgarian is restored power over northeastern Bulgaria, David dies, Moses, Aaron's family was destroyed by Samuel |
| кр.976 или нач.977 г. | Boris II was killed, Roman was declared king until 991. |
| след 977 г. | Campaigns of King Samuel in Epirus, Hellas, Peloponnese, capture of Larissa |
| 986 г. | Campaign of Basil II against Bulgaria, Sredets is besieged |
| 17 август 986 г. | Basil II was defeated at Trajan's Gate by Samuel |
| 987-989 г. | Skirmishes in Byzantium, Bulgaria takes control of Durres, Verea, Servia |
| 990-991 г. | Liberation of Eastern Bulgaria |
| 995-996 г. | Samuel's expeditions to Thessalonica and the Halkidiki peninsula |
| 996 г. | Defeat of Samuel at the river Sperhei |
| 997 г. | Samuel was declared king (997-1014), and Ohrid the capital |
| 998 г. | Joining the Adriatic Coast and The Serbian principality, Ivan Vladimir was captured |
| 1000 г. | Basil II conquered the eastern Bulgarian lands |
| 1002 г. | Basil II captured Verea, Collydron, Servia, Voden |
| 1003 г. | With Hungarian help, Byzantium captured Vidin, and Samuel attacked Adrianople (Edirne) |
| 1004 г. | Basil II captures Skopje, fails siege of Pernicus |
| 1009 г. | King Samuel was defeated at Crete |
| 29 юли 1014 г. | Capture of 14/15 thousand Bulgarians by Basil after his victory at the village of Kluch |
| 06октомври 1014г. | Tsar Samuel dies |
| 15 октомври 1014- лятото на 1015 г. |
Reign of Tsar Gavrail Radomir |
| лятото на 1015 г. | Ivan Vladislav kills Gavril Radomir, his wife, blinds his son, kills Ivan Vladimir |
| 1015-1018 г. | Reign of Ivan Vladislav, last ruler of the First Bulgarian kingdom |
| февруари 1018 г. | Ivan Vladislav was killed near Durres |
| март 1018 г. | Campaign of Vesiliius - Crakra and 35 others surrender regional governors, Patriarch David, Voivode Bogdan. Enters Ohrid |
| 1018-1019 г. | Resistance of Presian, Alusian, Aaron (sons of Ivan Vladislav), voivode Ivac, Nikulitsa, Elemag, Gavra; Sermon (Srem) - last fortress. |
| 1018 г. | Bulgaria falls under Byzantine rule |
| 1019 г. | Attempt by Elemagus and Gavra to restore the Bulgarian State |
| 1040-1041 г. | Rebellion led by Petar Delyan |
| 1066 г. | Anti-Byzantine actions in Thessaly |
| 1072 г. | Rebellion led by Georgi Voytech |
| 1074 г. | Nestor's Rebellion in Druster |
| 1079 г. | Rebellions in Sredets and Mesemvria |
| 1084-1086 г. | Pavlikian riots in Plovdiv |
| 1096-1097 г. | First Crusade |
| 1147-1149 г. | Second Crusade |
| 1183 г. | The Hungarians capture Belgrade, Branicevo, Rivne, Niš and Sredets |
| 1185 г. | The Normans capture Drachi and Thessalonica |
| 1185 г. | Revolt of the Asenevitsi, Theodore proclaimed King |
| 1186 г. | Asen and Petar liberate the northeastern Bulgarians lands and enter Thrace |
| 1187 г. | Signing of the Loveshko Armistice |
| 1189-1190 г. | Passage of the troops of the Third Crusade |
| 1190 г. | March of Emperor Isaac II Angel to Tarnovo |
| 1190 г. | Defeat of Isaac II Angel in the Trevnen Pass |
| 1191-1196 г. | Successful actions in Thrace, Southwest Bulgaria, joining Vidin, Belgrade and Branichevska region. |
| 1195 г. | Ivan I Asen defeats the Romans at Syar |
| 1196 г. | Tsar Ivan I Asen was killed by Ivanko in Tarnovo |
| 1197 г. | Tsar Peter was killed as a result of a boyar conspiracy |
| 1197-1207 г. | Reign of Tsar Kaloyan |
| 1198-1201 г. | Unions of Tsar Kaloyan with Ivanko, Dobromir Hriz, Ioan Spiridonaki |
| кр.1201-нач.1202г. | Peace treaty between Bulgaria and Byzantium |
| 1201 г. | King Kaloyan captured the city of Varna |
| 1202 г. | The Hungarians capture Belgrade and Branicevo |
| 1207-1218 | Reign of King Boril |
| 1208 | The Latins defeat the Bulgarians at Plovdiv |
| 1211 | Council against the Bogomils in Tarnovo |
| 1213 | Bulgarian-Latin union supported by dynastic marriage of Emperor Henry with Boril's daughter |
| 1214 | A failed anti-Serbian coalition |
| 1214 | rebellion of boyars in the Bdina region |
| 1218-1241 | Reign of Joan Assen II |
| 1219 | King Andrew II of Hungary requests permission to pass through Bulgaria |
| 1221 | Marriage with the Hungarian Anna-Maria and annexation of Belgrade and Branichevo as a dowry |
| 1224 | Epirus ruler Theodore Comnenus captured Thessalonica kingdom and proclaimed himself emperor |
| 1224 | Bulgarian-Epirian peace treaty |
| 1228 | Bulgarian-Latin peace treaty concluded with a marriage between Helena Assen and the minor emperor Baldwin II |
| 9 март 1230 | The Battle of Klokotnitsa and the Defeat of Epirus |
| 1230 | Joan Assen visited the Holy Mountain and donated the monasteries there |
| 1232 | The Hungarians attack Belgrade and Branicevo, are repulsed by Sebastocrator Alexander |
| 1235 | The Bulgarian-Nicaean Union was sealed with the marriage of Elena Asen and Theodore II Lascaris |
| 1235 | Restoration of the Bulgarian Patriarchate |
| 1235 | Unsuccessful siege of Constantinople by Bulgarian-Nicene forces |
| 1237 | Bulgarian-Latin peace treaty and siege of Tsurulum |
| 1237 | The Bulgarian-Nicene Union was restored |
| Еньовден 1241 | John Assen II dies |
| 1241-1246 | Reign of Caliman I Assen (son of John Assen II and Hungarian Princess Anna-Maria) |
| 1246-1256 | Administration of Michael II Assen (son of John Assen II and Irina) |
| 1246 | Attack of the Nicaeans - capture Siar, Melnik, The Rhodope region, Eastern and Central Macedonia, the Hungarians capture Belgrade and Branicevo |
| 1253 | Treaty with Dubrovnik directed against Serbia, war with Serbia |
| 1254-1255 | Bulgarian-Nicene War, initial successes of the Bulgarians, followed by a reversal. Settlement of relations with Hungary, through Rostislav Mihailovich, Mikhail Asen married his daughter. |
| есента на 1256 или 1257 |
Treaty of Regina between Bulgaria and Nicaea - unconditional recognition of territory, conquests in Thrace and Rhodope area. Mikhail Asen was killed. A struggle for the throne begins between his cousin Kaliman II, Rostislav Mihailovich, Mitso, Konstantin Tych |
| 1256-1257 | Kaliman II is killed Mitso is proclaimed Bulgarian king. |
| 1257 | The Boyar council elects Constantine Tychus as king, he marries Irina (daughter of Theodore II Lascaris, granddaughter of Joan Assen II) |
| 1261 | Restoration of the Byzantine Empire - Michael VIII Palaeologus |
| 1262 | Bulgarian-Byzantine War, initial success for Bulgaria. |
| 1263 | A turn in hostilities, Bulgaria loses Plovdiv, Stanimaka, almost all of Thrace and the Black Sea coast |
| 1265 | Actions of Tatars and Bulgarians against Byzantium |
| края на 1268 | Constantine Tychus married Maria (niece of Michael VIII Palaeologus), an attempt is made to joining the anti-Byzantine coalition of Charles Angevin |
| 1273 | Tatar attack in the Bulgarian lands |
| 1277 | Beginning of the movement against the Tatars led by Ivaylo |
| 1278 | Ivailo is proclaimed king. Marriage with Maria and repelling the Tatars. |
| 1279 | Joan Assen III is proclaimed king |
| 1285 | Tatar invasion in the Bulgarian lands |
| 1292-1298 | Administation Smilets |
| 1299 | Administation Chaka |
| 1300-1321 | Management of Teodor Svetoslav |
| 1330 | The Battle of Velbuzhd. Tsar Michael III Shishman dies |
| 1330-1331 | Administration of Ivan Stefan |
| 1331-1371 | Reign of Tsar Joan Alexander |
| 18 юли 1332 | Battle of Rusokastro |
| 1344 | Intervention of the Bulgarian king in a Byzantine conflict |
| 1345 | Momchil dies |
| 1352 | The Turks capture the Cimpe fortress |
| 1354 | The Turks capture the Gallipoli fortress |
| 1355 | Treaty between Bulgaria and Byzantium for common actions against the Turks. Marriage of Hadronicus with Keratsa |
| 1364 | Bulgarian-Byzantine War for the Southern Black Sea. The Turks capture Edirne |
| 1365-1369 | Hungarian occupation of the Vidin region. Captivity of Ioan Sratsimir. Turkish occupation of Thrace |
| 1371 | King Joan Alexander dies. The Bulgarian kingdom officially is divided into three parts. |
| 1371 | Beginning of the second stage of the Ottoman conquest. |
| 1382 или 1385 | The Turks capture Sofia |
| 1387 | Defeat of the Turks at Polačnik |
| 1388 | Conquest of Shumen, Madara and Ovech |
| 1389 | The Battle of Kosovo Field |
| 1393 | Siege and capture of Tarnovo |
| 1395 | Capture of Nikopol |
| 1396 | Campaign of King Sigismund of Hungary. Fall of the Kingdom of Vidin and the final fall of Bulgaria under Ottoman rule. |
