WW1 and WW2 were a tremendous waste of life and the worst part? They were completely pointless.
https://blossom.primal.net/3fbaeacfdadbdbafc63e16216d98ade337579efe3140e5ca3c250d522d2c218e.jpg
Mohammed has been #1 in Rotterdam and Amsterdam since at least 2009. If you look for other names such as Noah you will find more cities and it goes back further in time.