Oreo (/ ˈ ɔːr i oʊ /) is a brand of sandwich cookie consisting of two wafers with a sweet creme filling. It was introduced by Nabisco on March 6, 1912, and through a series of corporate acquisitions, mergers and splits both Nabisco and the Oreo brand have been owned by Mondelez International since 2012. Oreo cookies are available in over one hundred countries.