Pre-Islamic period of Afghanistan

Archaeological exploration of the pre-Islamic period of Afghanistan began in Afghanistan in earnest after World War II and proceeded until the late 1970s when the nation was invaded by the Soviet Union. Archaeologists and historians suggest that humans were living in Afghanistan at least 50,000 years ago, and that farming communities of the region were among the earliest in the world.Urbanized culture has existed in the land from between 3000 and 2000 BC. Artifacts typical of the Paleolithic, Mesolithic, Neolithic, Bronze, and Iron ages have been found inside Afghanistan.

After the Indus Valley Civilization which stretched up to northeast Afghanistan, it was inhabited by the Iranic tribes and controlled by the Medes until about 500 BC when Darius the Great (Darius I) marched with his Persian army to make it part of the Achaemenid Empire. In 330 BC, Alexander the Great of Macedonia invaded the land after defeating Darius III of Persia in the Battle of Gaugamela. Much of Afghanistan became part of the Seleucid Empire followed by the Greco-Bactrian Kingdom. The area south of the Hindu Kush had been given by Seleucus I Nicator to Chandragupta Maurya and became part of the Maurya Empire. The land was inhabited by various tribes and ruled by many different kingdoms for the next two millenniums. Before the arrival of Islam in the 7th century, there were a number of religions practiced in ancient Afghanistan, including Zoroastrianism, Surya worship, Paganism, Hinduism and Buddhism. The Kaffirstan region, in the Hindu Kush, was not converted until the 19th century.

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