For Shakespeare, it took William from 1598 to 1601 to write the play.
There is not enough evidence to make an educated guess.
If Shakespeare did write an early play called "Perfumed" it is since lost. We really don't know for sure what his first play was, when it was written and whether it was performed at all.
Sometime before 1613 when he retired and after 1592 by which time he had already written his first play. Shakespeare wrote about 38 plays and many of them are famous.
when he was 10
he did write them
We don't know exactly what Shakespeare's first play was, so we cannot answer questions about it.
Yes.
Henry VI is a history play thought by many to be Shakespeare's first. Henry VIII is a history play thought by some to be his last. Obviously he wrote history plays throughout his career.
In London, England.
Yeah.....
Shakespeare wrote his first play for the same reason he wrote all of them--for money.