What significant event does April 6, 1830, mark in Texas history?

April 6, 1830, is a significant date in Texas history because it marks the enactment of the Law of April 6, 1830, which was a profound change in the policy towards American immigration into Texas. This law effectively banned further U.S. immigration into Texas and aimed to curtail the influx of settlers from the United States, who had been arriving in large numbers. The rationale behind the law was to improve the governance of the region and alleviate concerns regarding the growing population of Anglo settlers, who were often at odds with the Mexican government. By establishing this ban, the Mexican government aimed to consolidate control over Texas and maintain the integrity of Texas as a part of Mexico.

The other options relate to important events in Texas history but do not accurately describe what occurred specifically on April 6, 1830. While land survey regulations, the foundation of Texas independence, and the drafting of the first Texas constitution are all notable milestones, they are not directly tied to this specific date and its legislative significance.