Situated in mid-summer (from the point of view of its Northern Hemisphere authors) and including the mid-year solstice, the name of the new month was chosen in homage to the sun.
[4] Leap years in the International Fixed Calendar contain 366 days, and its occurrence follows the Gregorian rule.
Lunisolar calendars, with fixed weekdays, existed in many ancient cultures, with certain holidays always falling on the same dates of the month and days of the week.
Versions of the idea differ mainly on how the months are named, and the treatment of the extra day in leap year.
The "Georgian calendar" was proposed in 1745 by Reverend Hugh Jones, an American colonist from Maryland writing under the pen name Hirossa Ap-Iccim.
[5] The author named the plan, and the thirteenth month, after King George II of Great Britain.
In 1849 the French philosopher Auguste Comte (1798–1857) proposed the 13-month Positivist Calendar, naming the months: Moses, Homer, Aristotle, Archimedes, Caesar, St Paul, Charlemagne, Dante, Gutenberg, Shakespeare, Descartes, Frederic and Bichat.
[7] Sir Sandford Fleming, the inventor and driving force behind worldwide adoption of standard time, became the first president of the IFCL.
Some organized opposition to the proposed reform came from rabbi Joseph Hertz, who objected to the way that the Jewish Sabbath would move throughout the week.