History Timeline - Who was alive, when, and where?
From Millions to Billions - What age did they make their first billion?
Visual Biographies - Timelines of amazing lives for visual learners
Unicorn Republic - List of startups that evolved into $1 billion+ corporations
Milanote - Milanote is a note taking app for creative work.
The Y Combinator Database - The definitive database of YC companies with all the metrics