1782 - In Ohio the Gnadenhutten massacre[?] of Native Americans takes place in which 29 men, 27 women, and 34 children were killed by white militiamen in retaliation for raids carried out by another Native American group.
... a while until one finds the "rolling" point, but the gyro will also be accelerated to a smaller extent by the slipping friction.
The device is covered by US ...