It helped prevent Identity theft and it can help police identify you in troublesome situations.
In the French and Indian war (Or the Seven years war) the British and French claimed the Ohio river valley and eventually the British gained the land in the treaty of Paris
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How was labor different after the Industrial Revolution than it was before? Before the Industrial Revolution, labor was done by factory workers. After the Industrial Revolution, labor was done by farmers. Before the Industrial Revolution, labor was performed in service to a king.
It is taken into effect to become law... but if the law doesn't work out, the judicial branch can uphold it in court and lawyers will defend the law if they think it's needed but the winning argument is the one that decides what happens next. If the law get's 'thrown out,' then the lawyer can go to the supreme court if they want to try it again with a higher power court.
Hope this helps! Let me know if you have any questions.