A year is normally written as a number i.e. using digits.
e.g. 'The first manned lunar mission was in 1968.'
(For sample text and more information, see Related links below)
The year 2015 is MMXV
I believe the first rule is to be consistent. However, there was also a rule to write out numbers zero to nine, then use numbers for 10 or above.
No, it should be in the lower case. But the proper way is to spell out the numbers from less than 10 then use the numerals for numbers more than 10.
In the year fifty-seven seventy, ...
Two thousand nine
Nineteen seventy five.
That is the correct spelling of "midyear" (middle of the year, or occurring then).
The answer depends on how many more millennia they keep using Roman numerals!
In Roman numerals it is the year MCMLXIV. In Arabic numerals it is the year 1964.
According to the American Heritage Dictionary of the English Language, the correct spelling is "New Year's Day." To read more about this on Answers.com, see the Related Link.
The correct spelling is "triannual" (occurring three times each year).
Two thousand and nine OR Two thousand nine