Complex sentence: After the birth of the twins, Shakespeare left few historical traces until he is mentioned as part of the London theatre scene in 1592, and scholars refer to the years between 1585 and 1592 as Shakespeare's "lost years".
Split into simpler sentences: After the birth of the twins, Shakespeare left few historical traces until he is mentioned as part of the London theatre scene in 1592. Scholars refer to the years between 1585 and 1592 as Shakespeare's "lost years".