The Nebraska Senate was the upper house of the Nebraska Legislature during the days when Nebraska was a territory from 1854 to 1867 (when it was called the Nebraska Territorial Council) and then again when Nebraska was a state from 1867 until 1936.^[1] In 1934, Nebraska voters amended the Nebraska Constitution to reconfigure the Nebraska Legislature to a unicameral system.^[1] This system became effective for the 1937 legislative session. Beginning as a territorial upper house in 1854, it had 13 members; this number was raised to 30 members when the second state constitution was adopted in 1875. In 1881, the Senate increased to 33 members, and although a later constitutional amendment allowed it to increase to 50 members, it remained at 33 members until it was abolished in 1936.^[1] The last senators of the bicameral legislature were elected to a two-year term in 1934 and began their service with the final legislative session in 1935.^[2]