-The latter adopted
by the Arabians, forms the measurement of time of the Ma-
homedan Era. Profane history measured by the Solar year
1 of 365 days.
Length of the Ante-diluvian year.............
Dr. Halley's account of the ancient philosophers......
The Brazen Age. -Era of Sesostris. -- Thales, the first to cor-
rect the Greek year. The Greeks however, not the "pion-
eers" of astronomical science. Their astronomy between
the time of Solon and Hipparchus, vague and undefined.
The Attic or Athenian lunar year. The Macedonian Calen-
dar. -The Greek Eucumenical Council. The era of the
Seleucidae. The Cecropian Era and Parian Chronicle.-The
Consular Era. The Olympiads."
Origin and progress of Cycles, to harmonize the Lunar with the
Solar year. Cleostratus.. The first Cycle of Dieteres, of
two years. — The Tetraeteris, a Cycle of four years.—The
Octoeteris, of eight years. The Cycle, of Meto, of nineteen!
- The Calippic Cycle of seventy-six years. The Juli-i
an, and Juliano-Gregorian Cycle, now the universally ad-
mitted standard.....