The Congress of the Republic of Texas was the national legislature of the Republic of Texas established by the Constitution of the Republic of Texas in 1836. It was a bicameral legislature based on the model of the United States Congress. It was transformed into the Texas Legislature upon annexation of Texas by the United States in 1846. A vestige of it remains in the name of Austin's main north–south street leading from the State Capitol, Congress Avenue, when it was founded as the intended national capital.