Wikipedia:Selected anniversaries/August 28
- 475: Flavius Orestes took control of Ravenna, the capital of the Western Roman Empire, forcing Emperor Julius Nepos to flee.
- 1565: Pedro Menéndez de Avilés founded St. Augustine in Spanish Florida, the oldest continually occupied European settlement in the continental United States.
- 1845: The first issue of Scientific American was published.
- 1850: The romantic opera Lohengrin by Richard Wagner premiered.
- 1963: Martin Luther King, Jr. delivered his "I Have a Dream" speech.