1 ene 1500 año aC - The Vedic Age Begins

Descripción:

The Vedic Age, the period in which the oldest scriptures of Hinduism, the Vedas, are written, begins. This period signals the rise of large, urbanized areas.

Resources: softschools.com/timelines/hinduism_timeline/381/

I think that this event might have affected other events, because it is when civilizations really blossom in knowledge and craftmanship, having the events after this improve due to this.