History
With PCR being developed between 1975 and 1980 and the first restriction enzyme isolated in 1970, highly accurate parental testing was not a possibility before 1970.
Read more about this topic: Parental Testing
Famous quotes containing the word history:
“There is no example in history of a revolutionary movement involving such gigantic masses being so bloodless.”
—Leon Trotsky (1879–1940)
“We aspire to be something more than stupid and timid chattels, pretending to read history and our Bibles, but desecrating every house and every day we breathe in.”
—Henry David Thoreau (1817–1862)
“Boys forget what their country means by just reading “the land of the free” in history books. Then they get to be men, they forget even more. Liberty’s too precious a thing to be buried in books.”
—Sidney Buchman (1902–1975)