People have lived and founded their settlements in Baku city and the Absheron peninsula since ancient times. This was motivated by continuous migrations from north to south and from west to east due to the physical and geographical conditions, a favorable location in the center of trade routes that crossed Silk Road, climatic conditions, production of petroleum fuel in ancient times and the availability of large power resources.

Baku was first mentioned in the Book of the Dead by the Egyptian Pharaoh Minesan in 3,500 BC. The ancient age of Baku is also evidenced by stone carvings dating back to 12,000 years ago and archeological excavations. Another important piece of evidence is a stone carving by August Guy Octavio, who reflected the stationing of a military camp under the rule of the Roman emperors Pompey and Lucius near Baku (40 km to the south) for the purposes of seizing the southern Caucasus in the 1st century BC. This means that Baku is nearly 5,500 years old.

Baku was one of the main cities in the Shirvanshakhs State in the 12th century, in the Sefevids State in the 14th century, in the Ottoman Empire in the 16th century, and became the capital of the Baku khanate in the 17th century.

Baku is situated on the shore of the Caspian Sea in the south of the Absheron peninsula. It covers an area of 2,200 square km and has a population of 2 million. Nearly 500,000 refugees from Armenia as well as IDPs from the occupied territories, currently reside in Baku.

Baku has 11 administrative districts and 5 settlements.