Fitz M. Teaching the History of Tracking Time with Technology. JMETC [Internet]. 2016 Dec. 7 [cited 2026 Apr. 1];7(2). Available from: https://journals.library.columbia.edu/index.php/jgh/%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509%25252525252525252509https:/journals.library.columbia.edu/index.php/jmetc/article/view/794