How do we know so much about the Fire of London?
The reason why we know so many details about the fire is that two men who were alive at that time kept diaries in which they described the dramatic events. The names of these two people were Samuel Pepys and John Evelyn.
To prevent such a disaster happening again King Charles ll commanded that all new houses in London should be of stone and brick not wood. Christopher Wren constructed St Paul's Cathedral (between 1675 and 1711) as well as many churches.
Not long after the fire a momument, designed by Sir Christopher Wren, was erected between 1671 and 1677, as the City's memorial to the Great Fire in 1666.