It's Latin and refers to citizenship not by place of birth but by having both parents from a certain location.
Explanation:
A system called jus sanguinis is when a person obtains citizenship within their fathers or families. Jus sanguinis the is a principle of community law by which citizenship is not restricted by place of birth but by having one or both parents who are citizens of the state. Children at birth may automatically be citizens if their parents have state citizenship or political connections of ethnic, cultural, or other origins. Citizenship can also apply to kids whose parents belong to a diaspora and were not themselves citizens of the country granting citizenship
The Second Amendment provides U.S. citizens the right to bear arms. ... Having just used guns and other arms to ward off the English, the amendment was originally created to give citizens the opportunity to fight back against a tyrannical federal government.
Learning about it helps you be more cautious and extra clean. Similar to how if you learn about all the stuff they put into junk food and you dont want it eat it anymore.