On this day in History - January 27

1606 – Gunpowder Plot: The trial of Guy Fawkes and other conspirators begins, ending with their execution on January 31.

1880 – Thomas Edison receives a patent for his incandescent lamp.

1951 – Nuclear testing at the Nevada Test Site begins with Operation Ranger.

1973 – The Paris Peace Accords officially ends the Vietnam War. Colonel William Nolde is killed in action becoming the conflict's last recorded American combat casualty.

2017 – A naming ceremony for the chemical element tennessine takes place in the United States.