![It happened on a… April 21](https://allbuzznews.com/https://cdn.buzznews.ca/2023/04/5c7d964a14b5c-1.jpg)
2021
Russian President Vladimir Putin warns the West not to cross a “red line” in his state of the union address, amid massing of 100,000 Russian troops on Ukraine border.
![](https://cdn.buzznews.ca/2023/04/f31b20466ae89669f9741e047487eb37-1200x675-2.jpg)
2019
Ukrainian comedian Volodymyr Zelensky wins the country’s presidential election in a landslide.
![](https://cdn.buzznews.ca/2023/04/coverimages51204412-1.jpg)
1989
![](https://cdn.buzznews.ca/2023/04/Tiananmen-Square-Protests-1200x675-1-3.jpg)
1984
After 37 weeks Michael Jackson’s album “Thriller” is knocked off as top album by “Footloose”.
![](https://cdn.buzznews.ca/2023/04/5c7d964a14b5c-1200x656-1-1.jpg)
1982
![](https://cdn.buzznews.ca/2023/04/Rollie-Fingers-1200x675-1-1.jpg)
1977
“Annie” opened on Broadway.
![](https://cdn.buzznews.ca/2023/04/Annie-1200x675-1-1.jpg)
1967
Working at Abbey Road studios in London, The Beatles completed the sessions for Sgt. Pepper’s Lonely Hearts Club Band.
![](https://cdn.buzznews.ca/2023/04/Beatles_Sgt.-Peppers-Lonely-Hearts-Club-Band-1200x675-1-1.jpg)
1956
Elvis Presley’s 1st hit record, “Heartbreak Hotel”, becomes #1.
![](https://cdn.buzznews.ca/2023/04/f6e794a75c5d51de081dbefa224304f9-1200x675-1-1.jpg)
1934
The “Surgeon’s Photograph”, the most famous photo allegedly showing the Loch Ness Monster, is published in the Daily Mail (in 1999, it is revealed to be a hoax).
![](https://cdn.buzznews.ca/2023/04/coverimages25513082-1200x675-1-1.jpg)
1904
![](https://cdn.buzznews.ca/2023/04/52c5189391854c93e8a0e1326e56c14f-1200x675-1-1.jpg)