London is about 2000 years old. London was founded by the Romans. It was called Londinium by the Romans. London was also called Lunnainn in Scottish Gaelic,Llundain in Welsh and Londain in Irish.
For a long time, London was a small city. All its people lived inside the walls that were built by the Romans. This area is still called the City of London. There were many villages around the city. Gradually, more people came to live there. Then, step by step, the villages joined together into one huge city.
The population of London is 8.63 million. Most people in London are British. However, London also has many immigrants. These people come from many different countries. They speak many different languages and have different religions and cultures. There are also many people from different countries who stay in London on business. Many people visit London as tourists. They may see the famous "Sights of London". These sights include palaces, churches and museums.