Overview

July 28 is the 209th day of a common year and the 210th day in a leap year in the Gregorian calendar. There are 156 days remaining until the end of the year. The date sits in midsummer for the Northern Hemisphere and midwinter in the Southern Hemisphere, and astrologically it falls under the sign of Leo.

Calendar characteristics

Because of leap-year adjustments, the ordinal position of July 28 changes in leap years; consult the rules for leap years to see how February’s extra day shifts day counts. In civil use the date is fixed on the Gregorian calendar; different cultures and calendars may mark events on corresponding lunar or religious dates.

Notable historical events

  • 1821 — José de San Martín proclaimed the independence of Peru; July 28 is celebrated as Peru’s national day.
  • 1914 — Austria-Hungary declared war on Serbia, a declaration commonly marked as the opening act of World War I.
  • 1976 — A major and deadly earthquake struck the industrial city of Tangshan, China, an event often cited among the worst peacetime natural disasters of the 20th century.

Observances and commemorations

Several recurring observances fall on July 28. Peru celebrates its Fiestas Patrias (national holidays) on July 28 and 29. Internationally, July 28 is observed as World Hepatitis Day, raising awareness of viral hepatitis; some groups also mark World Nature Conservation Day on this date. Local and regional commemorations vary widely.

Notable births

  • Beatrix Potter (born 1866) — widely known British author and illustrator of children's books.
  • Jacqueline Kennedy Onassis (born 1929) — American socialite and First Lady, noted for her style and cultural initiatives.

July 28 combines civic celebrations, public health awareness, and the remembrance of pivotal historical moments. As with any calendar date, its cultural weight depends on national histories and local traditions, and it is commemorated differently around the world.