Original: This includes 73,645 regular Britannica articles , with the remainder drawn from the Britannica Student Encyclopædia , the Britannica Elementary Encyclopædia and the Britannica Book of the Year ( 1993 -- 2004 ) , plus a few '' classic '' articles from early editions of the encyclopaedia .
Simplified: It includes 73,645 Britannica articles , with the other articles from the Britannica Student Encyclopædia , the Britannica Elementary Encyclopædia and the Britannica Book of the Years ( 1993 -- 2004 ) , plus a few old articles from old editions of the encyclopaedia .