Euro-American settlement began around 1792.

Euro-American settlement began in the 1840s.

Three days later, they passed La Charrette, the last Euro-American settlement on the Missouri.

Euro-American settlement in this area began in 1831 and a community developed.

Euro-American settlement in Glen Arbor began in 1848.

In 1890 a Euro-American settlement was established at Pauline Cove.

Euro-American settlement in the area was spurred in the early 20th century with the coming of the railroad.

Euro-American settlement of the area began in the early 1850s, with the early settlers often selling cattle to California-bound emigrants.

Euro-American settlement began around 1800, and the county was formally organized in 1807 and named for Benjamin Franklin.

Euro-American settlement of the area began in the 1850s.