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blackwarryor on 22 April 2018
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CrazyGamer2017 said:
blackwarryor said:

Yes, counting years is purely mathematics, but you must have made a mistake in your statement to conclude that 1900 is in the 20th century. 

Let's say someone is born the 1st of July 1900, he's (approximately) born in the middle of the 1900th year, so he's born 1899.5 years after the "beginning", starting the 1st of January 1. Like you said a century is 100 years long so the 1st century start from 0 years after the beginning and last until 100 years after that point in time. Identically, the 19th century start 1800 years after the beginning point, and last until 1900 years after it. 

The mistake comes from the impression people have, that, starting with year 1, something is missing, but actually everything make sense, because at any point in time during the year 1 you're at 0,xxx years after the beginning point. And it's obvious that the existence of a 0th year make as much sense as dividing by zero.

 

Ps : excuse my approximated English 

Nope, in your example if he's born the 1st of July 1900 he is born in 1900,5 and NOT 1899,5

1900 is the beginning of the new century which means that if he's born in the middle of the year 1900 he starts living when the century is half a year old. (1900 + half a year which is 0,5 = 1900,5)

Just as when you are born you are ZERO years old and NOT minus 0.5 years old nor 1 year old.

Just to be clear, all this using the decimal system (mathematics) and not the Gregorian count.

EDIT: And there is no 0th year, there is the FIRST year but as long as the FIRST year is not complete you are in the year zero (when counting in whole numbers) if you count in fractions then it's different but no one counts years in fractions when speaking of the year of an event so that's why we consider whole numbers and not fractions here.

Omg :0

I tried to be as clear as possible but it didn't came trough your mind. I don't know what to say, what you state is simply wrong. 

 

When a car crashes in the middle of the lap 3, it made 2.5 laps starting from the beginning point, which is in this case, the starting/finishing Line. And absolutely not 3.5...

You're making the mistake i mentionned with the beginning point. 

Year 1 is not the year that begins when one year has passed since the beginning point, it is the first year starting immediatly after the beginning point.