| 1822 | Louis Pasteur is born | Louis was born in France to a poor family. |
| 1847 | Louis goes to college | Louis attended and graduated from Ecole Normal in France. He studied sciences. |
| 1849 | Louis gets married | Louis married Marie Laurent and they had five children. |
| 1854 | Louis' becomes a professor of science | Louis began his work as a professor, and one of his duties included finding scientific solutions to common problems in the area. |
| 1855 | Louis finds bacteria in the drink | Louis was assigned the job of figuring out why common drinks like beer and wine became sour. He discovered the bacteria growing in the drinks, and figured out that if you boiled the drinks and then cooled them, it killed the bacteria. |
| 1856 | Louis returns to Ecole Normal | Louis returned to his old school, but this time as a professor. |
| 1864 | He studies where the bacteria came from | Pasteur went on to study where the bacteria growing in food and drinks were coming from, and he finally figured out it came from the air or environment. |
| 1864 | The Germ Theory | Many people in the 1800's still believed that germs were not harmful to people. Louis proved that germs were the cause of illness. |
| 1865 | Louis saves the silkworms | After his success with the beverage industry, Louis was asked to work on the dying crops of local silk fields. He figured out the silkworms were ill, and introduced a way to fix the problem. |
| 1868 | Louis becomes ill | Louis suffered from a small stroke and it left him partially paralyzed, but he was still able to experiment. |
| 1879 | Louis discovers vaccinations | Louis accidentally exposed chickens to a small form of cholera, and when the chickens didn't become sick he wanted to know why. He figured out the small exposure had worked as a vaccine against the actual sickness, and the vaccine was born. |
| 1885 | A vaccine against rabies | After finding vaccines for smallpox, TB, and cholera, Louis worked toward a vaccine for rabies. He found it in 1885. |
| 1888 | The Pasteur Institute in Paris | Louis' fame spread around the world, and soon donations began pouring in for the founding of the Pasteur Institute in Paris. |
| 1895 | Louis is honored | Louis was given the Leeuwenhoek medal, the highest honor in microbiology. |
| 1895 | Louis Pasteur's death | Louis Pasteur died in 1895. His paralysis had worsened after his stroke in 1868. Louis's contributions to society have saved millions of lives, and his legacy lives on today. |
