It closed down for a while because of the plague
plague
The Globe Theatre was not closed in 1592 because it wasn't built until 1599. There were plague outbreaks in 1603 and 1608 which caused the theatres to close. This plague was pneumonic plague, not bubonic as is often incorrectly stated.
21,000 people
Roughly 3000 people went there to watch, from the inside and outside of the theatre.
It depends what you mean by "Shakespeare's theatre". Do you mean the theatre which was built in 1996 and is called Shakespeare's Globe Theatre? Or do you mean the theatre company which he joined, the Lord Chamberlain's Men, which was founded in 1594? Or do you mean the tradition of Elizabethan theatre of which Shakespeare was a part, which started in about 1560? It could be any one.
plague
The Globe Theatre was not closed in 1592 because it wasn't built until 1599. There were plague outbreaks in 1603 and 1608 which caused the theatres to close. This plague was pneumonic plague, not bubonic as is often incorrectly stated.
21,000 people
Roughly 3000 people went there to watch, from the inside and outside of the theatre.
What theatre are you thinking of as "shakespeare's theatre"? Because Shakespeare did not own even a part of any theatre in 1592. Nor did he own even a part of any theatrical company. In fact he may not have even been a permanent member of any theatrical company at that time. There was nothing you could call "shakespeare's theatre" in 1592.
20,000 people went to theater in 1592
It depends what you mean by "Shakespeare's theatre". Do you mean the theatre which was built in 1996 and is called Shakespeare's Globe Theatre? Or do you mean the theatre company which he joined, the Lord Chamberlain's Men, which was founded in 1594? Or do you mean the tradition of Elizabethan theatre of which Shakespeare was a part, which started in about 1560? It could be any one.
The Plague
During Shakespeare's lifetime, his plays were performed at at least six public theatres in London: The Rose in 1592-93, The Theatre in 1594-6, The Curtain in 1596-1599, The first Globe in 1599-1613, the second Globe in 1613-1616, and the Blackfriars in 1608-1616, as well as being performed on makeshift stages in country venues, in people's houses, in public halls, at court, and even on board ship. After Shakespeare's death in 1616 his plays continued to be played at the second Globe and the Blackfriars (as well as the makeshift venues) to 1642, when all theatre was banned. After the Restoration, Shakespeare's plays were performed at the Drury Lane and Covent Garden theatres, and later, at just about all of the theatres in the world.
the plague
There was no "Shakespeare Theatre" in either 1592 or 1613. Shakespeare did not own any part of any theatre until 1599. In 1599, Shakespeare's associates Richard and Cuthbert Burbage, who did own a theatre, wanted to build a new theatre to solve some of their legal problems. They therefore arranged to use parts of their old theatre to build the new one, but they needed some cash to buy supplies. Enter Shakespeare and some other guys who put some money into the Burbages' new theatre in exchange for a cut of the profits. It was this new theatre, the Globe Theatre, which burned down on June 29, 1613 during the performance of one of Shakespeare's plays. To the people back then, the Globe would have been the "Burbage Theatre" since Richard Burbage was more famous than Shakespeare and actually owned a large chunk of it.
1592 to the present, approximately, not including the period 1642-1660 when theatre was outlawed in England. The date 1592 is somewhat conjectural but we do know that someone in that year had seen a Shakespeare play performed.