The Constitution of the State of Texas is the document that establishes the structure and function of the government of the U.S. state of Texas and enumerates the basic rights of its citizens. The current document was adopted on February 15, 1876, and is the seventh constitution in Texas history. The previous six were adopted in 1827, 1836, 1845, 1861, 1866, and 1869. Texas constitutional conventions took place in 1861, 1866, 1868–69, and 1875.