http://www.submarine-history.com/NOVAtwo.htm World Submarine History Timeline* Submarine History 1870-1914: A Timeline of Development World Submarine History Timeline* http://www.submarine-history.com/NOVAtwo.htm#1874 WORLD SUBMARINE HISTORY TIMELINE 1580-2000 as early as 1900 Gustave Zede (Zédé) as early as 1900 Submarine History 1870-1914: A Timeline of Development as early as 1900 http://www.submarine-history.com/NOVAtwo.htm as early as 1900 http://www.submarine-history.com/NOVAtwo.htm#1893 U-31 to U-41 World Submarine History Timeline* as early as 1900 http://www.submarine-history.com/NOVAtwo.htm#1874 Gymnote as early as 1900 as early as 1900 http://www.submarine-history.com/NOVAtwo.htm http://www.submarine-history.com/NOVAtwo.htm#norden http://www.submarine-history.com/NOVAtwo.htm#1893 mainly for coastal defense as early as 1900 World Submarine History Timeline 1870-1914 http://www.submarine-history.com/NOVAtwo.htm#norden