source: The United States presidential election of 1856 was the 18th quadrennial presidential election, held on Tuesday, November 4, 1856.
target: The United States presidential election of 1856 was the 18th quadrennial presidential election.  It was held on Tuesday, November 4, 1856.
references: The United States presidential election of 1856 was the 18th quadrennial presidential election.  It was held on Tuesday, November 4, 1856.