Barack Obama has made history by being sworn in as the first black president of the United States. Despite warning of "gathering clouds and raging storms" he also delivered a message of hope to the American people. In front of a massive global audience - not to mention up to 2 million people braving temperatures of -6C in Washington - the ceremony ushered in a new era of US politics. At Capitol Hill, Vice-President Joe Biden was sworn in ahead of Mr Obama, who then placed his hand on President Abraham Lincolns inaugural bible and took the Oath of Office as his wife Michelle stood beside him. This was followed by the US Marine Corps band playing "Hail to the Chief" and a 21-gun salute. In his much-anticipated inaugural speech, the 47-year-old urged American individuals and businesses to take responsibility for their actions.