Its county seat is Winfield, and its most populous city is Arkansas City.
For many millennia, the Great Plains of North
America was inhabited by nomadic Native Americans. From the 16th
century to 18th century, the Kingdom of France claimed ownership of
large parts of North America. In 1762, after the French and Indian
War, France secretly ceded New France to Spain, per the Treaty
In 1802, Spain returned most of the land
to France, but keeping title to about 7,500 square miles. In 1803, most of the
land for modern day Kansas was acquired by the United States from
France as part of the 828,000 square mile Louisiana Purchase for
2.83 cents per acre.
1854, the Kansas Territory was organized, and then in 1861 Kansas became
the 34th U.S. state. Brown County was founded in 1855, was named
for Albert G. Brown.