�Menstrual Lodge�, North America, 1853.

UNITED STATES - SEPTEMBER 04: Engraving by James D Smillie after Captain Seth Eastman, US Army, showing huts used by Native American women for seclusion during their monthly period. In his drawings and paintings, soldier-artist Eastman (1808-1875) sought to preserve the way of life of a people he believed to be disappearing. The Native American population of the Americas was drastically reduced after the arrival of the Europeans due to war, disease, forced removal and relocation, and the destruction of traditional ways of life. Illustration from �Information respecting the history, condition and prospects of the Indian tribes of the United States. Part 5� by Henry Rowe Schoolcraft (1793-1864), published in Philadelphia in 1855. (Photo by SSPL/Getty Images)