Which year marked the end of Nebraska's first state constitution?'

The end of Nebraska's first state constitution occurred in 1867. This year is significant because it marks when Nebraska was officially admitted to the Union as the 37th state. Prior to this admission, Nebraska operated under its initial constitution, which was adopted in 1866. When Nebraska entered statehood in 1867, the first constitution officially took effect until it was later replaced by a new constitution in 1919. This transition to statehood was a crucial milestone in Nebraska's legislative history, as it established the framework for governance in the newly formed state. The other years listed are not associated with the end of the original state constitution; rather, they pertain to different legislative or historical milestones in Nebraska's development as a state.