Added Megalithic Temples of Malta sites

Added Ġgantija temple site

Test tagging religious centres ?

Added sites of Ozieri culture

Added pre-Nuragic cultures

Added site of Roca dels Moros, Spain

Added Cernavodă culture

Small Cucuteni-Trypillia corrections

Added Cucuteni-Trypillia culture evolution

Correction on Izvoare site location

Sites of Cucuteni culture

Sites de la culture de Cucuteni–Trypillia - correction de dates

Removed Sumer as a node

Small Yamnaya corrections

Yamnaya chronology & date correction

Added Yamnaya culture

Added Akrotiri site on Santorini

Populations for Uruk and Nagar

Date correction

Added pre-Upper Egypt kingdoms