The June issue of The Throwback, my monthly history-themed e-newsletter, takes a look back at the ultimate social-distancing experiment–Biosphere II. The prototype for a planetary commune was plagued by media controversy and outsized expectations–and that’s even before Steve Bannon showed up. Also covered is the recent History Channel miniseries on Ulysses S. Grant and why there are so few memorials to those who died in the 1918 flu pandemic. Click here to read.