literally millions of years, cancer is the abnormal groth of tissue due to the DNA mutating, therefore cacer has always existed. you cannot 'catch' cancer, it just develops. look it up on wikipedia.org
it really depends on what kind of cancer your talking about, but if its breast cancer or HPV(human papaloma virus), then its usually 50,000 to 100,000 thousand a year
This is a very good question. There are many different types of cancer and it depends on how early you find it. Not all types of cancer will kill you. Even some of the ones that might normally mean...