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.
... the axis pushes against the lower rim of the groove. While the axis is slipping around inside the groove, the friction between the axis and the groove rims will accelerate ...