Calendars /
by Brian Williams.
- Mankato, MN : Smart Apple Media, 2002
- 32 p. : col. ill. ; 27 cm.
- About time .
- Williams, Brian, 1943- About time. .
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.