Final answer:
In the time of the plague when London theaters were closed, Shakespeare focused on writing poetry. Given the limitations of theater work during such periods, it is believed that he took the opportunity to concentrate on his poetic compositions, many of which are celebrated to this day.
Step-by-step explanation:
During the period when the theaters in London were closed due to the outbreak of the plague, most scholars believe that William Shakespeare was engaged in writing poetry. Amidst uncertain times, it is understood that he turned to poetry, a solitary activity that did not require the presence of an audience or a theater. There is a lack of definitive records about his activities during these times, but it is speculated that the closures of the Elizabethan theatres may have provided him the opportunity to focus on creating some of his most famous poetic works such as his sonnets.
As a man rooted in the theater world, not only as a playwright but also as a producer, actor, and a form of a director with his own company, Shakespeare had multiple roles that would have been hindered by the theater closures. Nonetheless, he profitably managed these shutdowns by channeling his creativity into his writings. His lifetime involvement with theater likely influenced his poetry, blending dramatic elements with lyrical expression, revealing the depth of his artistry even during times when the stage remained dark.