Mr. Walter Marquardt Jr.
Nov 02, 2024
To solve problems about spans of time that include B.C. and A.D. dates, you would need to use which numbers?
To solve problems involving spans of time that include both B.C. (Before Christ) and A.D. (Anno Domini) dates, which numerical values would you need to use?
3 Answers
The important point is that there is no year 0. 1 BC is followed immediately by 1 AD. The difference between the two is one year.
proceeding by examples;
2014 AD – 2013 AD = 1 year (assuming always the same date in the two years)
44 BC – 40 BC = 4 years (duration is always expressed as an absolute value)
1488 AD – 756 BC = abs(756 BC – 1 BC) + 1 + abs(1488 AD – 1 AD) + 1 = 2243 years
or you can use the formula
X AD + Y BC – 1
Nov 11, 2024
One other thing to remember in dates: There was no year zero. Right now, we are in the year 2014. 2013 years ago, we were in the year 1 although no one called it that at the time. The year before that we were in 1 B.C. If you try to line up time on a standard number line, there seems to be a hole in the middle. We don’t name time exactly the way we name other linear sequences.
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