what is the aforesaid republic all about?
It was a sovereign state in North America that existed from March 2, 1836, to February 19, 1846, although Mexico considered it a rebellious province during its entire existence.
Republic of Texas
The Republic of Texas () was a sovereign state in North America that existed from March 2, 1836, to February 19, 1846, although Mexico considered it a rebellious province during its entire existence.
who sent delegation to washington to petition for statehood for texas UNANSWERABLE what is  texas annexation? It was the 1845 annexation of the Republic of Texas into the United States of America, which was admitted to the Union as the 28th state on December 29, 1845
wiki:25697890
Republic of Texas [SEP] Introduction
The Republic of Texas () was a sovereign state in North America that existed from March 2, 1836, to February 19, 1846, although Mexico considered it a rebellious province during its entire existence. It was bordered by Mexico to the west and southwest, the Gulf of Mexico to the southeast, the two U.S. states of Louisiana and Arkansas to the east and northeast, and United States territories encompassing parts of the current U.S. states of Oklahoma, Kansas, Colorado, Wyoming, and New Mexico to the north and west. The citizens of the republic were known as Texians. The region of the Mexican state of Coahuila y Tejas, now commonly referred to as Mexican Texas, declared its independence from Mexico during the Texas Revolution in 1835–1836, when the Centralist Republic of Mexico abolished autonomy from states of the Mexican federal republic.