<span>Advances that were made during the Han Dynasty:
Predict eclipses of the sun
Doctor's created new medicines
Chinese language grew from 3000 to 9000 characters
Paper was invented
Wheelbarrows and fine vases and china
Seismograph</span>
Knights of Saint John of Jerusalem
Boggy Depot in current Atoka County, north near Coal County line. Fought in the Choctaw Nation, 1865. Maybe.