sentences:  In the 18th century, there were various uprisings in the region such as in Ilamatlán in 1750 and Huayacocotla in 1784 in response to higher taxes and takings of land.In the mid 17th century, a system of serfdom by debt began that would reach its height in the 19th, involving indigenous, mestizo and negro peoples.During the 17th century however, some peoples were able to take possession of land under a communal scheme, declaring it the property of the Virgin Mary or of a saint to keep landholders and political chiefs from taking it.