They wont. AD and BC designations are required.
bc= before christ ad= anno domini ( the year of our lord)
Take the BC year and add it to the AD year with present year and bc & ad
700 bc
550 - -184 = 734. However as there was no year 0, 733 years after 184 BC was 550 AD, so there are 732 years between them (the years: 183 BC, 182 BC, ..., 2 BC, 1 BC, 1 AD, 2 AD, ..., 548 AD, 549 AD).
it means the dates of the past like bc is the same as bce which id the decrease of dates like 524bce to 520bce is 2 years but ad is the opposite
in 1500 bc - 300 ad
1034 years is 10.34 centuries. 1034 AD is in the 11th century AD 1034 BC is in the 11th century BC The first century AD was the years 1 AD to 100 AD The second century AD was the years 101 AD to 200 AD etc. The first century BC was the years 100 BC to 1 BC The second century BC was the years 200 BC to 101 BC etc There was no year 0 as zero did not exist as a concept when Dionysius Exiguus set up the "modern" calendar dates in the year designated 247 Anno Diocletiani which he calculated as 531 years after the birth of Jesus and so designated 531 AD, from which all our dates then follow on. (Zero was invented around 1100 AD).
Ad means ano domini and bc means before christ bc and ad are both time periods in history bc was before Jesus was born and ad is the time period that we are in now hope I have kind of answered your question
To find the number of years between 400 BC and 1500 AD, we need to calculate the difference between the two dates. First, let's convert 400 BC to BC to AD: 400 BC is equal to 400 years before the start of the AD era. Since the AD era starts at 1 AD, we add 400 years to 1 AD to get: 400 BC + 400 years = 1 AD Now, we can calculate the difference between 1 AD and 1500 AD: 1500 AD - 1 AD = 1499 years So, there are 1499 years between 400 BC and 1500 AD.
BC - Before Christ, then his life which is unaccounted for timewise, and then AD - Anno Domini For example: Dates Before Christ are written 350 BC Dates after Christ's birth are written AD 250
The last date of BC was 1 BC, then the first date of AD was 1 AD, there was no zero.
Okay Will AD is older than BC because AD is very old not like BC