re: #193 allegro

If you look at the Wiki, it does make sense. Especially considering “At least”. Including the stone age / neolithic times kinds thins the meaning.

en.wikipedia.org

Towards the end of the Neolithic period, various Chalcolithic civilizations began to rise in various “cradles” from around 3300 BCE. Chalcolithic Civilizations, as defined above, also developed in Pre-Columbian Americas and, despite an early start in Egypt, Axum and Kush, much later in Iron Age sub-Saharan Africa. The Bronze Age collapse was followed by the Iron Age around 1200 BCE, during which a number of new civilizations emerged, culminating in the Axial Age transition to Classical civilization. A major technological and cultural transition to modernity began approximately 1500 CE in western Europe, and from this beginning new approaches to science and law spread rapidly around the world.[14]