In archaeology, a lithic core is a distinctive artifact that results from the practice of lithic reduction. In this sense, a core is the scarred nucleus resulting from the detachment of one or more flakes from a lump of source material or tool stone, usually by using a hard hammer percussor such as a hammerstone. The core is marked with the negative scars of these flakes. The surface area of the core which received the blows necessary for detaching the flakes is referred to as the striking platform. The core may be discarded or shaped further into a core tool, such as can be seen in some types of handaxe.

The purpose of lithic reduction may be to rough out a blank for later refinement into a projectile point, knife, or other stone tool, or it may be performed in order to obtain sharp flakes, from which a variety of simple tools can be made. Generally, the presence of a core is indicative of the latter process, since the former process usually leaves no core. Cores may be subdivided into specific types by a lithic analyst. Type frequencies, as well as the general types of materials at an archaeological site, can give the lithic analyst a better understanding of the lithic reduction processes occurring at that site.

Benjamin Harrison (August 20, 1833 – March 13, 1901) was the 23rd President of the United States (1889–1893). Harrison, a grandson of President William Henry Harrison, was born in North Bend, Ohio, and moved to Indianapolis, Indiana at age 21, eventually becoming a prominent politician there. During the American Civil War, he served the Union as a Brigadier General in the XX Corps of the Army of the Cumberland. After the war he unsuccessfully ran for the governorship of Indiana, and was later appointed to the U.S. Senate from that state.

Harrison, a Republican, was elected to the presidency in 1888, defeating Democratic incumbent Grover Cleveland. His administration is most remembered for economic legislation, including the McKinley Tariff and the Sherman Antitrust Act, and for annual federal spending that reached one billion dollars for the first time. Democrats attacked the "Billion Dollar Congress", and used the issue, along with the growing unpopularity of the high tariff, to defeat the Republicans, both in the 1890 mid-term elections and in Harrison's bid for re-election in 1892. Harrison advocated, although unsuccessfully, for federal education funding and legislation to protect voting rights for African Americans. He also saw the admittance of six states into the Union.