Encyclopedia > Period

  Article Content


A period is an arbitrary interval of time. The word is applied to many different concepts:

Further meanings less connected with time:

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
History of California

... They specialized by environment. No tribe developed agriculture or writing. California was a major source of trading beads, wampum[?], which were produced from mussel ...