April 14-15, 1921 at Silver Lake in Colorado, 75.8 inches.
In 1851 by Sir George Airy
Answer:
The answer is number four.
Modern era was is the term that historians use to describe the historical period between the beginning of the 16th century and the 21st century.
The Gettysburg Address is a speech delivered by Abraham Lincoln at the November 19, 1863, dedication of Soldier's National Cemetery, a cemetery for Union soldiers killed at the Battle Of Gettysburg during the American Civil War. ... Everett spoke for two hours, from memory, before Lincoln took the podium.