Complex sentence: For a brief period of time during the 1830s, Plattsburg was home to a Federal land office for the newly opened areas of northern Missouri and was one of the farthest western non-military settlements in the United States until the Platte Purchase in 1836.
Split into simpler sentences: For a brief period of time during the 1830s, Plattsburg was home to a Federal land office for the newly opened areas of northern Missouri. It was one of the farthest western non-military settlements in the United States until the Platte Purchase in 1836.