The original post: /r/todayilearned by /u/tyrion2024 on 2024-10-12 12:40:54.

Original Title: TIL Levi Hutchins created America’s first mechanical alarm clock in 1787 because he wanted to get up at 4am every day. So his device was only set to that desired time and it was another 60 years before Antoine Redier made one that was able to be adjusted to a time other than 4am.