0
Still curious? Ask our experts.
Chat with our AI personalities
Blake
Taiga
Jordan
Add your answer:
Earn +20 pts
When did leap years start being implemented in the Gregorian calendar?
Leap years were first implemented in the Gregorian calendar in 1582.
What leap years were in the 1930s?
1932 and 1936 were the only leap years in the 1930s.
Why did the 1878 calendar repeat itself four times in the 20 years between 1888 and 1908?
That is just the way the calendars do repeat. A calendar repeats either every 5, 6 or 11 years, or every 28 years in the case of a leap year. A leap year skips a day, so you don't wait 7 years for a day to come round a second time. Depending how the leap years lie in relation to a year, one day may be skipped in a 7 year period, 2 days may be skipped in a 7 year period, if there are 2 leap years in that period, or the day you are expecting to come round is itself skipped, which accounts for an 11 year gap. If you check a set of calendars for that period, or any period you will see how the gaps are normally 5, 6 or 11 years. 1878 started on a Tuesday. As part of the normal pattern, there was an 11 year gap to 1889. 1884 did start on a Tuesday but being a leap year, it had 29 days in February, which 1878 did not, so it was not a repeat of 1878. So 1889 was the next normal year to start on a Tuesday. There was then a 6 year gap to 1895, as 1892 was the only leap year in that period, causing 1 day to be skipped. 1900 was not a leap year, which slightly disrupted the normal pattern of a leap year being every 4 years. It would normally have been a 5 year gap after that, but because 1900 was not a leap year, there was another 6 year gap to 1901, as 1896 was the only leap year in that period. Then there was a 6 year gap to 1907 as 1904 was the only leap year in that period. So that is how the 4 years occurred.
How is the Julius Caesar calendar different from ours?
The Julian calendar introduced by Julius Caesar had 365 days per year and 366 EVERY 4 years. This had allowed the calendar to creep out of line with the seasons. The Gregorian calendar we use now has the leap year rule: Every year that is exactly divisible by four is a leap year, except for years that are exactly divisible by 100; the centurial years that are exactly divisible by 400 are still leap years. For example, the year 1900 was not a leap year; the year 2000 was a leap year.
What year did the Great Leap forward begin?
Start: 1958 End: 1961
