It gives you visual proof that someone agreed to something, so that, later on, they can't say they didn't agree to that. It's like when you sign a contract, it is proof of the agreement.
It give you visual proof that someone agreed or disagreed about something or someone. For example, It's like a contract. Say I agreed to pay someone's bills than I stopped paying. You have a contract that I agreed to pay your bills.
David's Oath of the Horatii was undoubtedly one of his most famous and prized works, quickly becoming the face of the French Revolution and the symbol of patriotism.
