Timeline of Major Events By jordan_rory Aug 16, 1620 Submarine Nov 24, 1859 Charles Darwin publishes on the origin of the species Dec 17, 1903 Aeroplane Jul 17, 1906 Electricity Jul 17, 1906 Sonar Apr 10, 1912 Finding the Titanic Wreck Jul 17, 1926 Rocket Jul 17, 1928 Alexander Flemmings Discovery of Penicilin as a natural antibiotic Jul 20, 1929 Alfred Wegener publishes the origin of continents and oceans Sep 22, 1934 HMAS Sydney II Period: Jul 17, 1939 to Jul 17, 1945 Atomic Energy Sep 14, 1939 Helicopter Jul 17, 1940 Howard Florey and Ernst chain purify penicillin Feb 15, 1946 Computer Jul 17, 1951 An Ocean Trench Apr 25, 1953 James Watson and Francis Crick publish molecular structure of nucleic acids: A structure for deoxyribose nucleic acid (DNA) Jul 17, 1953 A mid-ocean ridge Oct 4, 1957 Satellite Apr 12, 1961 Space Flights Jul 20, 1962 Watson, Crick, and Wilkens recieve the Nobel prize for their work on the model of DNA Period: Jul 16, 1969 to Jul 24, 1969 Moon Landing Jul 6, 1997 First Robot Landing on Mars