DNA info!!?

Question

Do you know what year Chargaff made his discovery of A=T and C=G? Also known as, "Chargaff's Rule?"

Answer 1

According to Wikipedia:

In 1950, he discovered that the amounts of adenine and thymine in DNA were roughly the same, as were the amounts of cytosine and guanine. This later became known as the first of Chargaff's rules.

http://en.wikipedia.org/wiki/Erwin_Chargaff