The history of Bulgaria can be traced from the first settlements on the lands of modern Bulgaria to its formation as a nation-state and includes the history of the Bulgarian people and their origin. The earliest evidence of human occupation discovered on what is today Bulgaria date from at least 1.4 million years ago.[1] Around 5000 BC, a sophisticated civilization already existed and produced some of the first pottery and jewelry in the world. After 3000 BC, the Thracians appeared on the Balkan peninsula. In the late 6th century BC, most of what is nowadays Bulgaria came under the Persian Empire.[2] In the 470s BC, the Thracians formed the powerful Odrysian Kingdom, probably after the Persian defeat in Greece,[3] which subsequently declined and Thracian tribes fell under Macedonian, Celtic and Roman domination. This mixture of ancient peoples was assimilated by the Slavs, who permanently settled on the peninsula after 500 AD.
Meanwhile, in 632 the Bulgars formed an independent state north of the Black sea that became known as Great Bulgaria under the leadership of Kubrat. Pressure from the Khazars led to the disintegration of Great Bulgaria in the second half of the 7th century. One of the Kubrat's successors, Asparukh, migrated with some of the Bulgar tribes to the area around the Danube delta, and subsequently conquered Scythia Minor and Moesia Inferior from the Byzantine Empire, expanding his new kingdom further into the Balkan Peninsula.[4] A peace treaty with Byzantium in 681 and the establishment of a permanent Bulgarian capital at Pliska south of the Danube mark the beginning of the First Bulgarian Empire. The new state brought together Thracian remnants and Slavs under Bulgar rule, and a slow process of mutual assimilation began. In the following centuries Bulgaria established itself as a powerful empire, dominating the Balkans through its aggressive military traditions, which led to development of distinct ethnic identity.[5] Its ethnically and culturally diverse people united under a common religion, language and alphabet which formed and preserved the Bulgarian national consciousness despite foreign invasions and influences.
In the 11th century, the First Bulgarian Empire collapsed under Rus' and Byzantine attacks, and became part of the Byzantine Empire until 1185. Then, a major uprising led by two brothers - Asen and Peter of the Asen dynasty, restored the Bulgarian state to form the Second Bulgarian Empire. After reaching its apogee in the 1230s, Bulgaria started to decline due to a number of factors, most notably its geographic position which rendered it vulnerable to simultaneous attacks and invasions from many sides. A peasant rebellion, one of the few successful such in history, established the swineherd Ivaylo as a Tsar. His short reign was essential in recovering - at least partially - the integrity of the Bulgarian state. A relatively thriving period followed after 1300, but ended in 1371, when factional divisions caused Bulgaria to split into three small Tsardoms. By 1396, they were subjugated by the Ottoman Empire. The Turks eliminated the Bulgarian system of nobility and ruling clergy, and Bulgaria remained an integral Turkish territory for the next 500 years.
