TIL that there are 72 names of scientists, engineers, and mathematicians engraved on the Eiffel Tower

https://en.wikipedia.org/wiki/List_of_the_72_names_on_the_Eiffel_Tower
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1ghk6g9/til_that_there_are_72_names_of_scientists/