1) Gelato, an Italian frozen dessert, is similar to ice cream but has a denser and creamier texture. It is made with milk, sugar, and various flavorings, such as fruit, chocolate, or nuts. Gelato is churned at a slower speed than ice cream, incorporating less air and resulting in a richer consistency. It is served at a slightly warmer temperature than ice cream, allowing the flavors to be more pronounced. Gelato is a beloved treat, particularly in Italy, where it is enjoyed in countless flavors and gelaterias.

2) The process of impeachment involves charging a public official, such as a president or high-ranking government official, with misconduct and potentially removing them from office through a trial and vote by the legislature.

3) The Russian Revolution in 1917 resulted in the overthrow of the monarchy and the establishment of a communist government under Vladimir Lenin.

4) The windshield wipers were invented by a woman named Mary Anderson in 1903.