
Generation
The Strauss–Howe generational theory, devised by William Strauss and Neil Howe, describes a theorized recurring generation cycle in American history and Western history.

A new study suggests water first formed billions of years earlier than expected — as early as 100 million years after the big bang. According to these simulations, huge volumes of water, the primary ingredient for life, formed close to cosmic dawn — the moment the first generation of stars was born.