The Department of Justice has a rich and storied history. Although the position of Attorney General has existed since the founding of the Republic, it was not until 1870 that a separate Department was created bringing together under the authority of the Attorney General the activities of United States Attorneys, United States Marshals and others. Today our myriad responsibilities touch the lives of nearly all Americans. We investigate and prosecute Federal crimes; we represent the United States of America in court; we manage the Federal prisons; and we enforce the Nation's immigration laws. We work with our partners at home and abroad in enforcing the law and improving the system of justice for all Americans.