Jan Janczewski was born on July 4, 1928, in Warsaw, Mazowieckie, Poland.
Edward Janczewski died in 1918.
Edward Janczewski was born in 1846.
Lech Janczewski has written: 'Managerial guide for handling cyber-terrorism and information warfare' -- subject(s): Computer crimes, Cyberterrorism, Information technology, Information warfare, Management 'Internet and Intranet Security Management'
Jan Steen died in 1679.
Jan Rychlík died in 1964.
Jan Rypka died in 1968.
Jan Sierada died in 1943.
Jan Simons died in 2006.
Jan Tille died in 1966.
Jan Konopka died in 1814.
Jan Stankievič died in 1976.