- Red Wing’s “Stone Age” (mnopedia.org)
Thanks to the limestone bluffs and hills that surrounded Red Wing, the town became a Minnesota lime-making and stone quarrying center from 1870 to 1910. Those forty years are sometimes known as the city’s “Stone Age.”
- Bartolomeo Cristofori (Wikipedia)
Bartolomeo Cristofori di Francesco (Italian pronunciation: [bartoloˈmɛːo kriˈstɔːfori di franˈtʃesko]; May 4, 1655 – January 27, 1731) was an Italian maker of musical instruments famous for inventing the piano.