- Cyrus the Great (Wikipedia)
Cyrus II of Persia (Old Persian: š¤š¢š½š¢š KÅ«ruÅ”; c.ā600ā530 BC), commonly known as Cyrus the Great, was the founder of the Achaemenid Persian Empire. Hailing from Persis, he brought the Achaemenid dynasty to power by defeating the Median Empire and embracing all of the previous civilized states of the ancient Near East, expanding vastly and eventually conquering most of West Asia and much of Central Asia to create what would soon become the largest polity in human history at the time. Widely considered the world’s first superpower, the Achaemenid Empire’s largest territorial extent was achieved under Darius the Great, whose rule stretched from the Balkans (Eastern BulgariaāPaeonia and ThraceāMacedonia) and the rest of Southeast Europe in the west to the Indus Valley in the east.
- Otto Hahn (Wikipedia)
Otto Hahn (pronounced [ĖÉtoĖ ĖhaĖn]; 8 March 1879 ā 28 July 1968) was a German chemist who was a pioneer in the fields of radioactivity and radiochemistry. He is referred to as the father of nuclear chemistry and discoverer of nuclear fission, the science behind nuclear reactors and nuclear weapons. Hahn and Lise Meitner discovered isotopes of the radioactive elements radium, thorium, protactinium and uranium. He also discovered the phenomena of atomic recoil and nuclear isomerism, and pioneered rubidiumāstrontium dating. In 1938, Hahn, Meitner and Fritz Strassmann discovered nuclear fission, for which Hahn alone was awarded the 1944 Nobel Prize in Chemistry.
