100 years ago, it's 1920.
Jump One: 100 years before that, it's 1820.
Jump Two: 100 years again, and it's 1720.
Jump Three: 100 years more will take us to 1620.
Ok, well darn, I lied slightly. Shakespeare is already dead. He died 4 years ago. But many people he knew are alive, and we've landed about when the first complete edition of his plays is published. We'll have to wait 3 years. But we'll wager it's on more than one person's mind already to put the works together for publication. Dozens of original first editions are still around in 2020, studied microscopically.
Within living memory, we are only 3 similar jumps away from living memory of Shakespeare's own acting.
Within one longer lifespan, history and even language change considerably.