How many generations have past since the 1350 A.D.?
99774
If each generation is 25 years, then 26.
416427
The 22nd century starts in the year 2100\n\nSome would argue that as there was no Year 0 the first century started in 1 AD and was only 99 years long instead of 100 years long. And therefore all subsequent centuries should start in 101, 201 ... 2001, 2101.\n\nI don't agree with that point of view but it exists.
180055
Nice answer...but the question says 1800s and your answer says 1900s?
164528
It was more than 2,500 years ago.
1109816
Oldest Civilisation\nRich Heritage
852208
Sorry but milleniums are measured in years. there are 1000 years in a millenium.
547444
I can't tell you exactly how long we've been in existence, no one can. But to answer your second query with the way things are going i think we have two more generations of life left in us before total extinction due to pollution, religous wars or anarchy. Sorry, have a nice day.
442742
Medieval Period\n500 - 1450 AD
227835
The first species of the genus Homo appeared about 2.5 million years ago.  The first Homo sapiens appeared about 160,000 years ago.\n\nDuring the last 1500 years and before the advent of birth control, the average length of a generation has been 30 years.  This is known from accurate genealogical records.  It is calculated by dividing the number of generations into the years elapsed.  I'm sorry I don't have a reference for this.  It is born out by my own genealogical work with numerous lines over 10 generations and the lineage of an acquaintance who was descended from Mohammed (his was 29.5).  Also, I have seen many other genealogical results close to 30 years per generation.\n\nUsing 30 years per generation, Homo appeared 83,000 generations ago and Homo sapiens appeared 5,300 generations ago.
425565
its inbred in them... has been for centuries... that doesnt make it right,just means they,ve bin influenced by other peoples age old beliefs that shouldnt have started in the first place...
846793
Its about 2,740 years
535100
Which holocaust, there have been hundreds over the last 2000+ years.
565994
can't recall but about 600-700 years old.
693261
Demographers have come up with estimates ranging between 69 billion and 110 billion humans.\n\n\nA complication, among scientists at least, is that we do not know precisely when our primate ancestors became human. Many researchers have arbitrarily settled on one million years ago, even though our own subset of the genus Homo, H. sapiens sapiens, did not emerge until around 40,000 years ago.\n\nIf the paleolithic crowd (1 million years to 25,000 years ago) strikes you as too crude for admission to the communion of saints, subtract 36 billion or so from the figures above.
859564
Historical estimates say about 200 million.  \n\nSorry, can't help you with the math...\n\nhttp://www.census.gov/ipc/www/worldhis.html\n\nPlus you're assuming a doubling of population every generation.  Not everybody had children.
381210
yesterday it was right around 1 am.\n\nbecause it was:\n01:02:03 04/05/06\n\nWon't happen again for another 1000 years.
1116759
Here's a good website for ancient history.  It begins around the 5th or 6th century and goes through trends of this century.