Saccharin is accidentally discovered, the 22nd Amendment is ratified, Michael Jackson wins his first Grammy, and Mister Rogers dies, all on this day.
2011: The Wisconsin AFL-CIO assembles hundreds of union supporters claiming they will risk arrest to prevent police from clearing the Wisconsin State Capitol building. Protestors had occupied the building around the clock for two weeks in response to Gov. Scott Walker's proposed budget cuts ending most collective bargaining rights in the state. Despite the protests, the Wisconsin Assembly eventually passed the collective bargaining bill by a vote of 53–42 on March 10.