The Challenge XXX: Dirty 30 is a season of a show on MTV.
 Nine years before he wrote, Julius Caesar had reformed the calendar, so Varro was able to assign the dates of February 7, May 9, August 11, and November 10 to the start of spring, summer, autumn, and winter
In the Hindu calendar of tropical and subtropical India, there are six seasons or Ritu that are calendar-based in the sense of having fixed dates: Vasanta (spring), Grshma (summer), Varsha (monsoon), Sharat (autumn), Hemanta (early winter), and Shishira (prevernal or late winter)

