Christopher Columbus did go to a special school for navagation, he got more and more in to it.
His tools for navagation was a magnetic compass,the log,the lead line,the quadrant or ustrolube, and dead reckoning.
AOL Explorer was created in 2005.
HTC Explorer was created in 2011.
Each an Explorer was created in 1956.
Ford Explorer was created in 1991.
Leapster Explorer was created in 2010.
Gibson Explorer was created in 1958.
Tango Explorer was created in 1990.
Sydney Explorer was created in 1980.
HDF Explorer was created in 1998.
The Northwest Explorer was created in 1993.