Wikipedia:Selected anniversaries/August 18
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This is a list of selected August 18 anniversaries that appears on the "On this day" section of the Main Page. To suggest a new item, in most cases you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition may be controversial, or on a day that is or soon will be on the Main Page, please post your suggestion on the talk page instead.
To report an error when this appears on the Main Page, see Main Page errors.- 293 BC – The oldest known Roman temple to Venus was founded, starting the institution of Vinalia Rustica.
- 1572 – French Wars of Religion: Marguerite de Valois (pictured) was married to Huguenot King Henry of Navarre, in a supposed attempt to reconcile Protestants and Catholics in France.
- 1590 – John White, the governor of the Colony of Roanoke, returned from a supply trip to England and found his settlement deserted.
- 1868 – Pierre Janssen discovered helium while analyzing the chromosphere during a total eclipse of the sun. This was the first element detected in space before being found on Earth.
- 1941 – The T-4 Euthanasia Program in Nazi Germany was temporarily halted due to public resistance.
- 1966 – Vietnam War: A company of the Royal Australian Regiment fought a much larger North Vietnamese unit in the Battle of Long Tan.