Condoms. If your parents had used one, you probably wouldn’t be here. They’ve been preventing pregnancies and STDs for more than 3,000 years—and the materials used to make them in the past may surprise you. Ancient Egyptian’s used linen, the Chinese in the 1400s used lamb intestines, and the Europeans at one point used reusable animal skins. Get wrapped up in their history with our latest Womansplainer!