The exclamation point would better belong to “Prague: The Crown of Bohemia 1347-1437,” which just opened at the Metropolitan Museum of Art. “Prague” comprises some 160 stunning objects, many of them ...

Charles Stewart Vane-Tempest-Stewart, 6th Marquess of Londonderry, wears the Irish crown jewels in an 1889 painting by Sir Thomas Alfred Jones. Photograph by Davison & Associates.

His army, money, and the crown jewels of England, were washed away. Professor Donald Olson, an astronomer from Texas State University announced an explanation for the unfortunate event.