China lifted martial law.
The law was imposed after the death of 10,000 protesters at the Tiananmen Square massacre.
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US Supreme Court declared the start of informing potential criminals of their rights. These became known as the Miranda rights.
The Copyright Act of 1790 became the first federal copyright act to be established in the United States.
The Yellowstone National Park Protection Act went into law, making it the first National Park in the world.
The Treaty of Florence was signed, which ended the war between the French Republic and the Kingdom of Naples.
President Hindenburg issued the Reichstag Fire Decree.
