A new online learning tool to help new US citizens who have filed citizenship application form prepare for the Naturalization Test has been released by the U.S. Citizenship and Immigration Services (USCIS) and the Smithsonian's National Museum of American History. According to the USCIS, interactive resource features of the new web-based learning tool, "Preparing for the Oath: U.S. History and Civics for Citizenship" will provide U.S. immigrants with more knowledge of the country.