Mount Pinatubo explodes
The stratovolcano’s eruption was one of the most violent of the 20th century. About 800 people died, but the event had also global consequences. For example, it caused a global temperature drop of 0.5 °C (0.9 °F)

Spain holds the first free elections since 1936
The transition to democracy followed nearly four decades of right-wing dictatorship under Francisco Franco. Adolfo Suárez became Spain’s first democratically elected Prime Minister.

The Union of European Football Associations is founded
The UEFA is the umbrella organization for association football in Europe. It comprises 54 member countries in Europe and Asia.

The first human blood transfusion is administered
Jean-Baptiste Denys, physician to King Louis XIV of France, transfused sheep blood into a 15-year-old boy. He survived, most likely due to the relatively small amount of blood used.