From left, a pair of artworks in the Greek and Roman Galleries, a marble statue of a kouros; Greek, ca. 590–580 B.C., and “Mangaaka Power Figure (Nkisi N’Kondi),” 19th century, by a Kongo artist, Democratic Republic of Congo, on display in “The African Origin of Civilization” at the Metropolitan Museum of Art in New York, Dec. 28, 2021. Holdings from Ancient Egypt and sub-Saharan Africa come together in a masterpiece show — now the Met should make clear how the wondrous works got here. Seth Caplan/The New York Times.