to inspire social engagement with his words, Why don’t we make a monument to peace where all of us can live together, not with walls coming up but with walls tearing down, so we can go forward together. (10) The site of Mr. Kennedy’s speech on April 4, 1968, should be preserved as a national treasure and this preservation is most fitting on the 50th anniversary of the speech. 3. Definitions In this Act: (1) Historic site The term Historic Site means the Kennedy–King National Historic Site established by section 4(a). (2) Map The term Map means the map entitled Kennedy–King National Historic Site Proposed Boundary. . (3) Secretary The term Secretary means the Secretary of the Interior. (4) State The term State means the State of Indiana. 4. Establishment of the Kennedy–King National Historic Site (a) Establishment (1) In general Subject to paragraph (2), there is established the Kennedy–King National Historic Site in the State as a unit of the National Park System to preserve, protect, and interpret for the benefit of present and future generations the site of Senator Robert F. Kennedy’s April 4, 1968 speech associated with the Kennedy–King Park in Indianapolis, Indiana. (2) Conditions for establishment The Historic Site shall not be established until the date on which the Secretary determines that sufficient land has been acquired for the Historic Site to constitute a manageable unit. (b) Boundaries The boundaries of the Historic Site shall be the boundaries generally depicted on the Map. (c) Availability of map The Map shall be on file and available for public inspection in the appropriate offices of the National Park Service. (d) Acquisition authority (1) In general The Secretary may acquire any land or interest in land located within the boundary of the Kennedy–King Park by— (A) donation