Anthropologists have recently spent a great deal of time bringing to light the challenges that many gay, lesbian, transgender, transsexual, or Two-Spirit Native Americans have historically faced. As a result, what French-based term has fallen into disrepute to describe transgender people in Native American communities

berdache

Explanation:

The term berdache was used by early French explorers to those Native Americans that went out of traditional gender and sex norms, while usually expressing androgynous characteristics and having relations and marriages with same-sex people who were likely falling into the more traditional gender roles (masculine men or feminine women).

However, as this term was coined by Euro-centric people, it adopted westerner ideas of gender, sex, and sexuality, which does not take the complexity of the Native philosophy into the account. Rather than staying within the Native culture, the term berdache pushes Westerner ideas and norms to the members of the Indigenous North American community.

This is why in the 90s the term Two-spirit had started being used, in order to describe the ideas that are common among Native Americans and their ideas, rejecting the traditional Western reading of the identities.

as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.