Answer:
Here's the order.
- Texas Rebels Declare independence from Mexico, March 2nd 1836
- Santa Anna attacks Texas Rebels, though technically it had gone on since February, the most famous attack at the Alamo occurred on March 6th, after about a 2 week siege by the Mexicans.
- James K Polk, a Southern Democrat becomes President, advocating for the immediate annexation of Texas.
- Texas join's the Union as a Slave State.
- The Mexican American War begins, America wins.
- California becomes a state.
Feel free to correct me if there's any errors.