Final answer:
The Texas Declaration of Independence, modeled after its U.S. counterpart, declared Texas's independence from Mexico, was signed by delegates at the Convention of 1836, and led to the establishment of the Lone Star Republic until annexation by the United States in 1846.
Step-by-step explanation:
The Texas Declaration of Independence was a pivotal document in the history of Texas and the United States. Drafted during a resurgence of hostilities and issues with Mexico's governance, it was created as part of the Texas Revolution. Specifically, it was modeled after the US Declaration of Independence, expressing grievances against Mexican rule and calling for the establishment of an independent Texas. On March 2, 1836, delegates at the Convention of 1836 formally declared Texas's independence from Mexico, citing political and social conflicts, the abolishment of the Mexican Constitution, and encroachments on their rights. Significant figures like William B. Travis, who was a leader at the Battle of the Alamo, were central to the Texas Revolution, although the declaration itself was signed by other delegates. As a result of the declaration and subsequent victory in the revolution, the Lone Star Republic was formed, existing as an independent nation until it was annexed to the United States in 1846.