Sarah “Saartjie” Baartman was the most famous of at least two[2] Khoikhoi women who were exhibited as freak show attractions in 19th-century Europe.

Fa’afafine is a third gender specific to Samoan culture. Fa’afafine are biological men who in childhood choose by their nature to be raised to assume female gender roles, something which is not discouraged in the traditional fa’asamoa (Samoan society).

In the early 1960s, the CIA’s Special Activities Division began to recruit, train and lead the indigenous Hmong people in Laos to join fighting the Vietnam War, named as a Special Guerrilla Unit led by General Vang Pao. About 60% of the Hmong men in Laos were supported by the CIA to join fighting for the “Secret War” in Laos.

Brazil is home to the largest Japanese population outside of Japan.

More info in Wikipedia.

Amazing face. According to legend the Kalash are the lost warriors of Alexander the Great’s army.

Kuru – also known as laughing disease

The Mosuo people are known as the ‘Kingdom of Women’ because The Na are a matrilineal society: heterosexual activity occurs only by mutual consent and mostly through the custom of the secret nocturnal “visit”; men and women are free to have multiple partners and to initiate or break off relationships when they please. The Mosuo men practice tisese which misleadingly translates as walking marriage in Chinese. However, the Mosuo term literally means “goes back and forth.” Women have the choice to invite men of interest to their private sleeping room. If the man does not reciprocate this desire, he may simply never visit the woman’s household. Men perform tisese in the true sense of the word. They can seek entry into the sleeping chambers of any woman they desire who also desires them. When feelings are reciprocal, a man will be allowed into a woman’s private sleeping area (Hua, C.) There he will spend the night and walk back to his mother’s home in the early morning.

The Pirahã people are an indigenous hunter-gatherer tribe of Amazon natives, who mainly live on the banks of the Maici River in Brazil. They currently number about 360, which is sharply reduced from the numbers recorded in previous decades, and the culture is in danger of extinction.