May 21 brings together three very different kinds of achievement: artistic vision, organized humanitarian care, and daring exploration. In 1471, Albrecht Dürer was born in Germany; his engravings and woodcuts, including *Melencolia I*, helped make him a defining artist of the Northern Renaissance. Four centuries later, in 1881, Clara Barton founded the American Red Cross in Washington, D.C., becoming its first president. The day’s history moves from the work of an individual artist to an institution built to help people in need.
Then, in 1927, Charles Lindbergh landed in Paris after completing the first non-stop solo transatlantic flight, piloting the *Spirit of St. Louis*. These milestones span more than 450 years, yet each reflects a willingness to push beyond familiar limits—through an image, an organization, or a journey across the ocean. The late-May date also places this collection at a seasonal threshold: spring is nearing its end in the Northern Hemisphere, a fitting backdrop for stories of new beginnings and ambitious undertakings. Across the list, progress takes many forms, from creating lasting works to extending care and widening the reach of human travel.