Explores the history of time as it relates to the evolution of the Earth, from its origins as a lifeless rock, through the development of simple organisms, more complex animals, and, eventually, humans.
Easy-to-follow text provides young readers with an introduction to the concepts of latitude and longitude and explains their importance in the history of measuring time.
Explores how humans have measured time throughout history, from moon calendars to sun clocks, hourglasses and other mechanical devices to electric, electronic, and atomic timepieces.
Explores the history of the calendar as it relates to time-keeping in general, touching on lunar and solar years, almanacs and diaries, time zones and the International Date Line, and famous dates.
