Timeline

January 1, 1818
Frankenstein is published anonymously, has huge success.

January 7,1819
The Shelley's three year old William dies from malaria in Italy.
Mary is pregnant with her fourth.

December 30, 1816
Mary and Percy get married in St. Mildred's church in London

November 12, 1819
Mary Shelley gives birth to Percy Florence, his the only child to outlive his parents.

July 8, 1822
Percy Shelley drowns in the gulf of spezia while sailing with a friend

February 1, 1851
Mary Shelley dies, people suspect that she had a brain tumor.