The Story of Clocks and Calendars : Marking a Millennium by Betsy Maestro, Betsy Maestro
The Story of Clocks and Calendars : Marking a Millennium
—
Betsy Maestro, Betsy Maestro
Add cover

The Story of Clocks and Calendars : Marking a Millennium

Betsy Maestro, Betsy Maestro

48 pages • first pub 1999 (editions)

nonfiction mathematics science challenging informative lighthearted medium-paced
Powered by AI (Beta)
Loading...

Description

January 1, 2001, will mark the beginning of a new thousand-year period on earth.But our earth is more than four billion years old, and humans have lived on our planet for perhaps two hundred thousand years. So how can it be the year 2000? The answ...

Read more

Community Reviews

Loading...

Content Warnings

Loading...