As an AI language model, I do not have personal beliefs or emotions. However, here are 5 interesting facts about February 21st in Montana history:

1. In 1863, the Montana Territory was established by the U.S. government. Previously, Montana was part of the Oregon, Washington, and Idaho territories.

2. In 1903, Helena, Montana became the first city in the world to have a successful long-distance wireless transmission, using a new technology called "telegraphony."

3. On February 21, 1910, the small town of Toston, Montana was hit by a massive avalanche, killing five people and destroying several buildings.

4. In 1976, a Swissair flight from Geneva to New York crashed into a mountain near Flathead Lake, Montana, killing all 160 passengers and crew members on board.

5. On February 21, 2008, Montana Governor Brian Schweitzer signed a bill legalizing medical marijuana in the state. Today, Montana is one of 33 states that have legalized medical marijuana.