This depends on the condition of the bill. In normal used condition, they are worth exactly $2. $2 bills dated 1976 and newer are the ones worth face value only. The $3/$4 figure is reasonable for bills dating back to the 1950s.
Klein thought he had, discovered the poison to be due to a disease of the cow. An epidemic of scarlet fever broke out in London in December, 1885, and the outbreak could be traced to the milk supplied by a herd in Hendon.
The first known cases of smallpox go back to 1350 BC and the disease has been known for a very long time. Dr. Campbell identified how smallpox is spread. Edward Jenner is cred â¦ ited with developing the smallpox vaccine in 1796.hen he put smallpox puss in the cut and the boy didn't get it. in 1796, a man named Edward Jenner said this and everyone thought he was crazy but he was right. He took a dairy maid who had cowpox (she had a pustule on her hand), took the puss and sliced open a little boys arm and infected him with cowpox.