And beginning in the 16th - 17th Century in Western Europe, no less! A mere 7500 years+ after Mesopotamia and the Indus Valley!
Definitely not geography, as the witnessed by the advent (or lack of) of herding aimals, agriculture, metalurgy, architecture, sciences, math, religion past animist, rule of law, goverment, market economy, money, philosophy, and the flippin wheel, all which were introduced to Europe from east of the Bosphorus.
But while that was happening elsewhere, Western Europe had the deightfully rough-hewn rocks of Stonehenge, a giant phallus carved in the side of a limestone hill, and leafy greens like lettuce and cabbage.... mmm, the smell of civilization beckoned... eventually,,,