Complex sentence: He served as the first head of state of Potchefstroom from 1840 and 1845 and also as the first head of state of Zoutpansberg from 1845 to 1852.
Split into simpler sentences: He served as the first head of state of Potchefstroom between 1840 and 1845. He also served as the first head of state of Zoutpansberg from 1845 to 1852.