- Look up
period or
periodic in Wiktionary, the free dictionary.
Period may
refer to:
Period (punctuation) Era, a
length or span of time Menstruation, commonly...
- In historiography,
periodization is the
process or
study of
categorizing the past into discrete, quantified, and
named blocks of time for the purpose...
- The Edo
period (江戸時代, Edo jidai; ****anese pronunciation: [e.do (d)ʑiꜜ.dai]), also
known as the
Tokugawa period (徳川時代,
Tokugawa jidai; [to.kɯ.ɡa.wa (d)ʑiꜜ...
- In
classical antiquity, the ****enistic
period covers the time in Gr****
history after classical Greece,
between the
death of
Alexander the
Great in 323...
- TUR-shee-err-ee) is an
obsolete geologic period spanning 66 million to 2.6 or 1.8
million years ago. The
period began with the
extinction of the non-avian...
- The
Heian period (平安時代,
Heian jidai) is the last
division of
classical ****anese history,
running from 794 to 1185. It
followed the Nara
period, beginning...
- postnatal)
period begins after childbirth and is
typically considered to last for six to
eight w****s.
There are
three distinct phases of the
postnatal period; the...
- The Nara
period (奈良時代, Nara jidai; ****anese pronunciation: [na.ɾa (d)ʑiꜜ.dai]) of the
history of ****an
covers the
years from 710 to 794.
Empress Genmei...
- A
glacial period (alternatively
glacial or glaciation) is an
interval of time (thousands of years)
within an ice age that is
marked by
colder temperatures...
- The
orbital period (also
revolution period) is the
amount of time a
given astronomical object takes to
complete one
orbit around another object. In astronomy...
