Intuitive Hit / Gut Knowing

The British soldier-explorer John Wood came close to rediscovering the ancient Greco-Bactrian city of Ai-Khanoum in modern Afghanistan.

The wreck of the SS Georgiana, valued at over $50,000,000 and said to have been the most powerful Confederate cruiser, is discovered by teenage diver and pioneer underwater archaeologist E. Lee Spence

After traveling through the Louisiana Purchase and reaching the Pacific Ocean, explorers Lewis and Clark and their Corps of Discovery begin their arduous journey home.

Two researchers announced the discovery of cold fusion, a claim that was later discredited.

A Chilean prospecting party led by José Díaz Gana discovers the silver ores of Caracoles in the Bolivian portion of Atacama Desert, leading to the last of the Chilean silver rushes and a diplomatic

Robert Koch announces the discovery of Mycobacterium tuberculosis, the bacterium responsible for tuberculosis.

German physician Robert Koch announced the discovery of Mycobacterium tuberculosis, the pathogen that causes tuberculosis.

Saturn's largest moon, Titan, is discovered by Christiaan Huygens.

Dutch astronomer Christiaan Huygens discovered Titan, the largest natural satellite of Saturn.

Enrico Fermi published his discovery of neutron-induced radioactivity, for which he was awarded the Nobel Prize in Physics.

William Dampier is the first European to circumnavigate New Britain, discovering it is an island (which he names Nova Britannia) rather than part of New Guinea.

Police in Rancho Santa Fe, California, discovered the bodies of 39 members of the religious group Heaven's Gate who had died in an apparent cult suicide.

Heinrich Wilhelm Matthäus Olbers discovers 2 Pallas, the second asteroid ever to be discovered.

German astronomer Heinrich Wilhelm Matthias Olbers discovered Pallas, the second asteroid to be identified, but at the time considered to be a planet.

The Terracotta Army is discovered in Shaanxi province, China.