Thanks to an army of thousands of Chinese and Irish immigrants, who laid 2,000 miles of track, the nation's first transcontinental railway line was finished.
On this day in 1907, union organizer Big Bill Haywood went on trial accused of an explosion that resulted in the death of Frank Steunenberg.
His works are still appreciated today, and he is seen by many critics as having transcended the cliches of the Russian classical music of his time.
Probably no single event has influenced the history of labor in the United States, and even the world, more than the Chicago Haymarket affair.
The Poor Peoples March began in Washington D.C. less than a month after the murder of Martin Luther King Jr.
Only nine of the men working in the mine at the time of the disaster were able to escape, after one of them got to safety and returned with a rescue team and equipment.
On the orders of President Roosevelt, the U.S. Army seized the Chicago headquarters of the unionized Montgomery Ward & Co. after management twice defied the NLRB.
The workers were protesting at the South Carolina Medical College Hospital demanding wage increases and union recognition.
The Irish Republican Brotherhood launched the "Easter Rebellion," an armed uprising against oppressive British rule.
The Oklahoma explosion (caused by a detonated truck bomb) took 168 lives including 19 children, and injured 680 people.