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 Zelenka died in 1931.
Jan Vostrcil died in 1985.
Jan Fifka died in 1970.
Jan Grmela died in 1957.
Jan Rypka died in 1968.
Jan Sierada died in 1943.
Jan Hanlo died in 1969.