By the beginning of the 19th century, it was already well established that indeed the Earth was round instead of flat. But the study of modern geology was still in its infancy and prompted many to establish some harebrained ideas about how the Earth was actually made.
One of those came from American Army Capt. John C. Symmes, Jr., who theorized that the center of the Earth was hollow and "stocked with thrifty vegetables and animals if not men."
He believed so fervently in this theory that he dedicated much of his life to organizing an expedition and discovering an entrance to the hollow interior of the Earth.
Symmes began his military career in 1802 and served well during the War of 1812, rising in the infantry to the rank of captain. When the war ended, he left active duty to start a trading business on the American frontier. It was there that he began really expanding upon his theory of a hollow Earth.
His theory was simple. According to a 2004 paper by Duane A. Griffin from Bucknell University, Symmes believed that all planets formed in layers with gaps in between. Part of this theory went that Saturn’s rings were a collapsed layer of that planet which had partially broken away, leaving trails of dust.
The Appalachian mountains were supposedly the remnants of similar rings that used to orbit the Earth but which crashed to the planet’s surface over time.
According to Symmes’ theory, a large open hole near the planet’s poles allowed access to the inner layers of the planet. Strangely, he claimed that the circumference of these holes included areas which had already been explored, such as northern Canada.
The public ridiculed Symmes at first, but his perseverance gradually won them over, and his theories developed a following.
In 1818, he solicited for 100 people to join him on an exploration of the Arctic to find the hole to the center of the Earth.
Symmes believed that the hole in the Arctic would reveal a warm interior. Venturing into the ice in the Autumn is a huge gamble. For some reason, Symmes was unable to find 100 people to roll the dice with him.
In the late 1820s, Symmes worked with Jeremiah N. Reynolds to lobby Congress and President John Adams for the Navy to fund the expedition. While Congress was firmly against the idea, Adams eventually approved it.
The president helped search for a way to make the expedition happen with limited support from Congress. But, Adams was politically unpopular and could not get the resources together before the 1828 election when he was bested by Andrew Jackson. Jackson shut down the expedition.
Sickness claimed Symmes' life in 1829, so he died before he could see his claims debunked.
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This article originally appeared on We Are The Mighty.
All photos: Wikimedia Commons