Wikipedia:Selected anniversaries/June 28
- 1389 - Ottoman wars in Europe: Turks under Murad I defeated Lazar Hrebeljanović and a coalition of Serb lords at the Battle of Kosovo.
- 1880 - Australian bank robber and bushranger Ned Kelly was captured in Glenrowan, Victoria after surviving a gun battle with police.
- 1914 - Yugoslav nationalist Gavrilo Princip assassinated Archduke Franz Ferdinand of Austria, sparking the outbreak of World War I.
- 1919 - The Treaty of Versailles was signed, ending World War I.
- 1956 - Workers in Poznań, Poland held massive protests demanding the lowering of food prices, rising of wages and revoking some recent law changes that worsened working conditions, but were violently repressed the following day.
- 1969 - In response to a police raid at the Stonewall Inn (pictured) in New York City, groups of gay and transgender people began to riot against New York City Police officers, a watershed event for the worldwide gay rights movement.