The Museum of London has a chronological record of the city, starting with the Romans, from 55 BC to the 4th century AD. They abandoned it in 410 AD, after having built a city they called Londinium, which included a large basilica.  There was little activity here until the Saxons rebuilt the town and the country became known as Angle-Land.  In 1016, after attacks by the Vikings (Danes), the Danish leader Canute became King of  England.  In 1066, the Norman, William the Conqueror, invaded and in the battle of Hastings,captured England.  The city continued to grow during medieval times until the great plague in 1665 and the great fire in 1666.  It was after this tragedy that Christopher Wren was commissioned to build a cathedral. 

From the Museum of London we walked to St. Paul's Cathedral and had lunch there-in the crypt, where they have a good restaurant.  We also saw the memorials to Lord Nelson, the Duke of Wellington and others who are buried there.  We then went to the main floor, where they had had a big 9/11 service the day before.