When did William Shakespeare start to write plays?

When he first wrote his first play he started March 3rd 1593, Henry VI part 1 was produced by the acting Troupe, Lord Strange's men at the rose theatre .
He wrote parts 1,2, and 3 of Henry VI between 1590-1592, he supposedly acted in those plays.
Playwrights were not seen as literary experts, a poet was highly acceptable and viewed as educated intellectuals, playwright was not.