May 18 brings together three very different kinds of change. In 1920, Karol Wojtyła was born; as Pope John Paul II, he would lead the Catholic Church from 1978 to 2005, becoming the first non-Italian pope in more than 400 years. His influence extended beyond the church: he played a significant role in ending communism in Europe and was canonized in 2014. In 1933, President Franklin D. Roosevelt signed the act creating the Tennessee Valley Authority, a public institution charged with improving navigation, controlling floods, and generating electricity across the region.
The day’s most dramatic event came in 1980, when Mount St. Helens erupted in Washington state. The disaster killed 57 people and devastated the surrounding landscape. Together, these dates trace the reach of human leadership and public institutions, but also the limits of human control over nature. They span six decades, moving from an individual life to a government initiative and then to a volcanic catastrophe. May falls in spring in the Northern Hemisphere, a season associated with renewal; this list offers a reminder that seasonal change can arrive alongside upheaval, whether gradual and shaped by people or sudden and immense.