Early Life Hero of Alexandria was born in 10 AD. As a boy, he spent most of his time at the University of Alexandria – an institution that housed the famous Library of Alexandria. Very little is ...

Ctesibius (Greek Κτησίβιος) of Alexandria, Egypt ... 5th century AD by Proclus Lycaeus and in the 10th century AD by Hero of Byzantion. Ctesibius lived most probably between the years ...