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How do you add and subtract ad and bc?
You can treat the BC years like negative numbers except that you need to compensate for the fact that there is no year 0 (the year before A.D. 1 is 1 B.C.). If you add to a B.C. year and you get a number greater than -1, add 1 more to compensate for the lack of year 0. For example, to calculate what year was five years after 2 B.C., add five to negative two: -2 + 5 = 3 Since 3 is greater than -1, add 1 more: 3 + 1 = 4 So A.D. 4 is five years after 2 B.C. Likewise, when you're subtracting from a positive (AD) year and you get a number less than 1, subtract 1 more for the lack of year 0. For example, to find the last leap year BC, subtract 4 years from the first leap year AD: 4 - 4 = 0 Since 0 is less than 1, 0 - 1 = -1 So the last leap year BC was 1 BC.
How many years ago was 3073 BC?
Basically you do the following calculation: You add the current year + the BC year number. Then you subtract 1 from the result, to account for the fact that traditionally, no year zero was used.
What is BC vs AD?
BC= stands for Befor Christ(count down) AD= stands for nAnno Domini(in the year of the lord) You know when years counted down right? Well that is BC. Then AD is when the years count up. When the abbreviations are the same then subtract(-) if they are different the add(+) 500 BC And 500 AD its 1,000 years! Now do you get it? If you still dont get it.... ASK YOUR TEACHER!
What century is the year 867 BC in?
The year 867 BC, as with any year between 900 BC and 801 BC, falls in the ninth century BC.
What year was it 100000 years ago?
2017 - 100,000 = -97,983 As there was NO year 0 (as zero hadn't been invented when Dennis the Little renumbered the years in what he/we call 531 AD) 1 BC preceded 1 AD and so subtract an extra year → 100,000 years before 2017 AD is 97,984 BC
