Conversation so far:
What was Vaudeville?
vaudeville performer Rae Samuels, who had performed in shows with Robinson, convinced him to meet with her manager.
What was Robinson's role?
By 1912, Robinson was a full partner in the duo.
Did they see any success?
working as a solo act, increasing his earnings to an estimated $3,500 per week.
How long did he perform solo?
Throughout the early 1920s, Robinson continued his career on the road as a solo vaudeville act.
What was his act about?
primarily a tap dancing act.
Are there any other interesting aspects about this article?
Robinson volunteered to perform gratis for thousands of troops.
Where did he perform for the troops?
Liberty Theaters in the training camps.
Did he do anything else with Vaudeville?
making Robinson one of the first performers to break vaudeville's two colored rule, which forbade solo black acts.

Question: How many solo performances did he have?
Self-contained rewrite: How many solo performances did Robinson have?