Complex sentence: In 1763, it came under British control at the end of the Seven Years War and in 1767 the northern boundary was moved to 32 degrees, 28' north latitude (from the current location of Vicksburg, Mississippi east to the Chattahoochee River).
Split into simpler sentences: In 1763, it came under British control at the end of the Seven Years War. In 1767, the northern boundary was moved to 32 degrees, 28' north latitude (from the current location of Vicksburg, Mississippi east to the Chattahoochee River).