https://m.youtube.com/watch?v=J1jPrPOyUFA
1897-John Philip Holland’s electric/gasoline fueled submarine is launched in the US.
https://www.youtube.com/watch?v=3szmSH1Ncvk
https://youtu.be/mVeIwGbDlMc
1874- A dam bursts in Williamsburg, MA, resulting in the US’s first recorded dam disaster.
https://youtu.be/9ErMNreMGFE
https://youtu.be/HC-WSsRawnE
https://youtu.be/XwD2tZNJ3v8
https://youtu.be/-MCzbGFQOFI
1907- Toronto plumbers begin a 4-month strike.