1993!

"1993 Both Canada and Turkey elect female heads of government for the first time" 

~ https://www.timeanddate.com/on-this-day/june/25

Tell friends.

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https://en.wikipedia.org/wiki/Kim_Campbell

+

https://en.wikipedia.org/wiki/Tansu_%C3%87iller

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https://www.careerfaqs.com.au/news/news-and-views/how-to-become-prime-minister-the-path-to-the-top