San Francisco-based museum curator, archaeologist, historian. Protection & Security for museums, historic sites, & archives. http://drlindaellis.com

The former newspaper reporter and English teacher is the author of the book, The Woman in the Well and Other Ancestories.

Dir. of @HutchinsCenter, African & African American Research & Alphonse Fletcher University Professor, @Harvard. #FindingYourRoots returns to @PBS on Oct. 3rd.

Science writer at The Atlantic. Author of I CONTAIN MULTITUDES, a New York Times bestseller on animal-microbe partnerships. https://edyong.me/

social psychologist-turned-data scientist

Has published 30 books, including How to Cook Everything and VB6: The Case for Part-Time Veganism. Newsletter at markbittman.com.

Founder of Black Ancestries. Blogging on Race, Culture, History and Genealogy.

Know your #genome. Help #science. Non-profit.