<Table> United States Department of the Interior <Tr> <Td_colspan="2"> Seal of the U.S. Department of the Interior </Td> </Tr> <Tr> <Td_colspan="2"> Flag of the U.S. Department of the Interior </Td> </Tr> <Tr> <Td_colspan="2"> Main Interior Building </Td> </Tr> <Tr> <Th_colspan="2"> Agency overview </Th> </Tr> <Tr> <Th> Formed </Th> <Td> March 3, 1849; 169 years ago (1849 - 03 - 03) </Td> </Tr> <Tr> <Th> Type </Th> <Td> Department </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Main Interior Building 1849 C Street NW Washington, D.C., U.S. 38 ° 53 ′ 37.11" N 77 ° 2 ′ 33.33" W ﻿ / ﻿ 38.8936417 ° N 77.0425917 ° W ﻿ / 38.8936417; - 77.0425917 </Td> </Tr> <Tr> <Th> Employees </Th> <Td> 70,003 (2012) </Td> </Tr> <Tr> <Th> Annual budget </Th> <Td> $20.7 billion (2013) </Td> </Tr> <Tr> <Th> Agency executives </Th> <Td> <Ul> <Li> Ryan Zinke, Secretary </Li> <Li> David L. Bernhardt, Deputy Secretary </Li> </Ul> </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.DOI.gov </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Seal of the U.S. Department of the Interior </Td> </Tr>

When was the department of the interior created