Editors Note: We're blogging through We Didn't Start the Fire by Billy Joel.
Margaret Sanger invented birth control in 1950 while in her 80s. She died at age 86. The first birth control pill was available in 1960, but only in 1962 were women in all states allowed to take it.
Birth control normally prevents pregnancy, but there are also a few birth control methods for men.
In the ancient times, women used silphium - a plant - to prevent birth, until it went extinct due to over harvesting.
There are many different types of birth control pills for women. The pills contain different types of hormones that help the mucus in the cervix become thicker, which makes it hard for sperm to pass through.