The United States Congress passed the Meat Inspection Act and Pure Food and Drug Act.
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Tower Bridge officially opened in London.
Charles J. Guiteau was hung until dead for the assassination of US President James A. Garfield.
The first leap second was added to the UTC time system.
The world's first emergency telephone calls were accepted in London, UK.
The Nazi Party killed around 1,000 people, which became known as the 'Night of Long Knives.'