Sapiens Direct

This allowed us to cooperate in large numbers (more than the ~150 natural limit for a tribe). The Agricultural Revolution (12,000 years ago):

Start in a tropical or temperate climate with flat land. You’ll need easy access to water, food (bushes), and building materials (hay/branches). Immediate Priorities: Sapiens

Keep an eye on your tribe's "Happiness" and "Health" bars. If they are too cold or hungry, they will stop working. This allowed us to cooperate in large numbers

These forces broke down tribal barriers and created a single global society. The Scientific Revolution (500 years ago): Sapiens