The BBC (British Broadcasting Corporation) has released details of its programmes to mark the centenary of World War I. It plans to broadcast almost 2,500 hours of new TV and radio shows between 2014 and 2018. This mirrors the one hundred years since the war. It is the BBC's biggest plan ever. The head of the BBC said the programmes are, "a chance for us all to learn something new about a war we think we know well". The BBC said it wants "to broaden people's understanding of the war." It also wants to remember those who were in it and to tell both well-known and untold stories.

World War I (WWI) is also known as the First World War. It mostly took place in Europe. It began on 28 July 1914 and ended on 11 November 1918. It was called the "Great War" until 1939, when World War II started. Over 9 million soldiers were killed in WWI. It is the fifth-deadliest war in history. Over 70 million people fought in it. The United States joined the fighting in 1917. After the war, many countries changed and new nations were created. There were also revolutions in a lot of countries. There was a lot of unhappiness in some countries and was one of the causes of World War II.