- 1638 - Swedish settlers founded New Sweden near Delaware Bay, the first Swedish colony in America.
- 1809 - At the Diet of Porvoo, the Four Estates of Finland pledged allegiance to Tsar Alexander I of Russia, commencing the secession of the Grand Duchy of Finland from Sweden.
- 1831 - Bosniak general Husein Gradaščević began an uprising against Sultan Mahmud II and the Ottoman Empire.
- 1871 - The Royal Albert Hall (pictured) in Albertopolis was officially opened by Queen Victoria of the United Kingdom.
- 1974 - NASA spaceprobe Mariner 10 flew by the planet Mercury.
Recent days: March 28 – March 27 – March 26
More anniversaries:
- 1638 - Swedish settlers founded New Sweden near Delaware Bay, the first Swedish colony in America.
- 1809 - At the Diet of Porvoo, the Four Estates of Finland pledged allegiance to Tsar Alexander I of Russia, commencing the secession of the Grand Duchy of Finland from Sweden.
- 1831 - Bosniak general Husein Gradaščević began an uprising against Sultan Mahmud II and the Ottoman Empire.
- 1871 - The Royal Albert Hall (pictured) in Albertopolis was officially opened by Queen Victoria of the United Kingdom.
- 1974 - NASA spaceprobe Mariner 10 flew by the planet Mercury.
Recent days: March 28 – March 27 – March 26
More anniversaries: