|
|
|
|
|
The Week |
|
7 days : about the time between major moon
phases |
|
Sunday - Sun, Monday[Lundi] – Moon,
Tuesday[Martedi] – Mars, |
|
Wednesday[Mercoldi] – Mercury, Thursday[Giovedi]
– Jupiter, |
|
Friday[Venerdi] – Venus, Saturday – Saturn |
|
The Month |
|
Early Roman – 12 lunar months = 354 days; every
3 years have a 13th month |
|
Julian Calendar – go to months of 30, 31days;
have leap years to fix extra quarter day |
|
To fix drift of equinox, 46BC had 445 days
(“year of confusion”) |
|
July and August named after Julius Caesar and
Augustus Caesar |
|
The Gregorian Calendar |
|
Equinox had slipped again by 10 days in 16th
century; Pope Gregory XIII fixed it in 1582 by dropping 10 days in Oct. |
|
changed calendar rules (only century years
divisible by 400 are leap years) |
|
Protestants didn’t follow until later; 1752 for
US & UK (can’t charge rent for missing days) |
|
Year starts on Jan. 1 instead of Mar. 25 (so
1751 had no Jan., Feb., or Mar 1-24); Washington’s birthday not really on
Washington’s birthday (born Feb. 11 but celebrated Feb. 22) |
|
Russian didn’t change until 1917 revolution
(losing 13 days) |
Notes