Cowpox children. In 1796, British medical practitioner Edward Jenner tested the theory that cowpox could protect someone from being infected by smallpox. Although cowpox originates on the udder of cows, Jenner took his sample from a milkmaid, Sarah Nelmes. Jenner extracted the pus of one of the lesions formed by cowpox on Nelmes to another individual who never had smallpox, James Phipps. He eventually developed a scab and fever that was manageable. Approximately six weeks later, Jenner then introduced an active sample of the smallpox virus into Phipps to test the theory. After being observed for an extended amount of time,
Kendall Jenner line for Nordstrom. The Jenner sisters previewed "The Kendall & Kylie Collection" with PacSun on November 15, 2012; the collection launched in February 2013. On February 3, 2015, the Jenner sisters confirmed "Kendall + Kylie" collaboration with Topshop, which they unveiled in November 2015 at the Chadstone Shopping Centre in Melbourne, Australia. The collection launched in New York on February 8, 2016. On April 27, 2016, the Jenner sisters previewed a summer swimwear collection. Beginning 2015, Jenner featured in a series of commercial ads for various products including Jenner's signature Pure Color Envy Matte Sculpting Lipstick. Jenner has also promoted