Each state of the United States selects two senators to represent their states in the United States Senate. In 1913, the 17th Amendment[?] to the United States Constitution provided for the direct popular election of senators; prior to this, senators were selected by state legislatures.
... February 23 - For $10 million the United States gains control of the Panama Canal Zone.
March 3 - Kaiser Wilhelm II of Germany becomes the first person to make a ...