Short answers, pulled from the story.
Before the 14th century, the English word man meant simply human and encompassed women and children alike. Old English speakers used the term mann to describe any person while wer served as the specific term for an adult male. This linguistic shift gradually replaced wer with mann as the default term for males.
The SRY gene on the Y chromosome acts as the master switch that transforms a developing fetus into a male. When a sperm carrying this chromosome fertilizes an egg, the SRY gene triggers the formation of testes which then secrete testosterone to guide the rest of male development. This biological cascade creates a body with greater muscle mass, broader shoulders, and a deeper voice.
In armed conflicts between 1955 and 2002, 81 percent of all violent war deaths were male. Men face higher risks in dangerous occupations with ten times as many men dying on the job as women in the United States alone during 2020. This disparity stems from social beliefs that equate masculinity with aggressive confrontational behavior.
The earliest recorded name of a man in writing may be Kushim who lived in the Sumerian city of Uruk between 3400 and 3000 BC. The first confirmed names belong to Gal-Sal and his two slaves En-pap X and Sukkalgir marking the beginning of recorded male identity in human history. Kushim might have been a title rather than a personal identifier.
The Mars symbol was first used to denote male sex by Carl Linnaeus in 1751. This symbol is a circle with an arrow pointing northeast and has become ubiquitous in representing the male sex. Some scholars suggest it represents the shield and spear of the Roman god Mars while historical evidence favors the theory that it derives from a Greek epithet for Mars.