Blue Bloods was a hit TV crime drama that ran on CBS from 2010 to 2024. Starring Donnie Wahlberg, Bridget Moynahan, and Tom Selleck, the show spanned 14 seasons of a family working in law ...

A metrology revolution: In the 1790s, the Revolutionary government in France installed standard metre lengths made of marble in busy areas around Paris. This is one of the last remaining examples.