Eiffel Tower was officially inaugurated.

_{The Eiffel Tower was officially inaugurated on March 31, 1889, when Gustave Eiffel led a group of officials and journalists to the top and raised the French flag. Every year on March 31, Eiffel Tower Day is observed to honour the tower's inaugural. However, it officially opened to the public on May 6, 1889, as part of the Exposition Universelle (World’s Fair) in Paris.}