Excavations of prehistoric sites by Louis Dupree and others at Darra-e Kur in 1966 where 800 stone implements were recovered along with a fragment of Neanderthal right temporal bone, suggest that early humans were living in what is now Afghanistan at least 52,000 years ago. A cave called Kara Kamar contained Upper Paleolithic blades Carbon-14 dated at 34,000 years old. Farming communities in Afghanistan were among the earliest in the world. Artifacts indicate that the indigenous people were small farmers and herdsmen, very probably grouped into tribes, with small local kingdoms rising and falling through the ages. Urbanization may have begun as early as 3000 BCE. Zoroastrianism predominated as the religion in the area; even the modern Afghan solar calendar shows the influence of Zoroastrianism in the names of the months. Other religions such as Buddhism and Hinduism flourished later, leaving a major mark in the region. Gandhara is the name of an ancient kingdom from the Vedic period and its capital city located between the Hindukush and Sulaiman Mountains (mountains of Solomon), although Kandahar in modern times and the ancient Gandhara are not geographically identical.