On This Day • April 17

Ranked historical events for this date.

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04-17🌍 Global

1964: Jerrie Mock completes the first around-the-world airplane flight by a woman. Her solo flight in the Spirit of Columbus, which took 29 1/2 days, took off and landed at the Port Columbus International Airport in Ohio.

1964: Jerrie Mock completes the first around-the-world airplane flight by a woman. Her solo flight in the Spirit of Columbus, which took 29 1/2 days, took off and landed at the Port Columbus International Airport in Ohio.

04-17🇨🇦 Canada

1982: Constitution Act, 1982 Patriation of the Canadian constitution in Ottawa by Proclamation of Elizabeth II, Queen of Canada.

1982: Constitution Act, 1982 Patriation of the Canadian constitution in Ottawa by Proclamation of Elizabeth II, Queen of Canada.

04-17🌍 Global

2003: Anneli Jäätteenmäki takes office as the first female prime minister of Finland.

2003: Anneli Jäätteenmäki takes office as the first female prime minister of Finland.

04-17🌍 Global

2014: NASA's Kepler space telescope confirms the discovery of the first Earth-size planet in the habitable zone of another star.

2014: NASA's Kepler space telescope confirms the discovery of the first Earth-size planet in the habitable zone of another star.