1. On April 3, 1914, construction began on the Lincoln Monument in Laramie, Wyoming. The monument was created to honor President Abraham Lincoln and commemorate the 50th anniversary of his signing of the Morrill Act, which established land-grant colleges and universities.

2. In 1942, a B-17 bomber crashed near Casper, Wyoming, killing all 10 crew members on board. The crash was attributed to poor weather conditions and the inexperience of the flight crew.

3. On April 3, 1981, the Wyoming Legislature passed a bill allowing Wyomingites to carry concealed weapons with a permit. The law has since been amended several times and remains controversial.

4. In 1998, the Wyoming Supreme Court ruled that the state's constitutional ban on same-sex marriage did not violate the federal constitution. It wasn't until 2014 that same-sex couples were allowed to legally marry in Wyoming.

5. On April 3, 2019, Wyoming Governor Mark Gordon signed a bill into law that legalized hemp production and sales in the state. The move was seen as a boost to Wyoming's agriculture industry and a potential source of revenue for farmers.