What invention was noted in the text that was made usable in the late 1200s which made a big difference regarding skilled crafts people and had an impact on people, jobs and ultimately, trade?

Invention of garment button was noted in the text that was made usable in the late 1200s that made a big difference regarding skilled crafts people and had an impact on people, jobs and ultimately, trade.

Explanation:

Operative buttons with buttonholes for fastening or closing garments emerged in Germany in the 13th century. They quickly became popular with the growth of suitable garments in 13th- and 14th- centenary Europe. The Indus Valley Civilisation is attributed to the discovery of the button. The first buttons were utilized as decorative decorations to a person's attire and meant prosperity or status.

they became hereditary because there weren't many jobs for people in lower classes