What number state was Texas when it was annexed to the United States?

Texas was the 28th state to be annexed into the United States. The annexation took place in 1845 and was significant as it not only expanded the territory of the United States but also led to complex political issues, including tensions with Mexico. The number associated with Texas highlights its place in the chronological order of states joining the Union, with Texas becoming the last of the contiguous states to join the United States before a period of rapid expansion into the West. This historical context emphasizes the importance of Texas's admission in the broader narrative of U.S. history.