Conversation so far:
What did Charlie Parker do in his early career?
In the mid-1930s, Parker began to practice diligently.
What did Charlie Parker master?
During this period he mastered improvisation and developed some of the ideas that led to the later development of Bebop.
Did Charlie Parker work with anyone else of note?
1942 Parker left McShann's band and played for one year with Earl Hines, whose band included Dizzy Gillespie, who later played with Parker as a duo.
What did Charlie Parker and Dizzy Gillespie do together?
In 1952 Parker and Gillespie released an album entitled Bird and Diz.
Did Charlie Parker and Dizzy Gillespie gain any recognition then?
This period is virtually undocumented, due to the strike of 1942–1943 by the American Federation of Musicians, during which time few professional recordings were made.

Question: Where else did they tour?
Self-contained rewrite: Where else did Parker and Gillespie tour besides what is undocumented?