This Week in Tech History: Leap Day Origins, Pioneer 10 Space Probe Launched Leap Day was initially instituted by a jealous Roman emperor, but it was later backed up by science. By John Bonazzo
Chinese Takeaway: The U.S. Could Use an Order of Order It’s worth asking whether, in our desire to empower citizens, we’ve become so bound by rules and requirements that we can’t build anything of consequence anymore. By Jeff Greenfield
Ambitious First Novel: A Hoover Dam Epic Waterborne , by Bruce Murkoff. Alfred A. Knopf, 416 pages, $25. Dam-building is a dramatic business. It demands explosives, ingenuity By Hephzibah Anderson
How Chess.com Co-Founder Danny Rensch Turned a Centuries-Old Game Into a Media Empire By Tom Samiljan
Ho Jae Kim’s Civil Art Returns to Christie’s With a Million-Dollar Milestone in Sight By Elisa Carollo