- The Acts of the Apostles (Koinē Greek: Πράξεις Ἀποστόλων, Práxeis Apostólōn; Latin: Actūs Apostolōrum) is the fifth book of the New Testament; it tells of the founding of the Christian Church and the spread of its message to the Roman Empire.
- Platonic solid (Wikipedia)
In geometry, a Platonic solid is a convex, regular polyhedron in three-dimensional Euclidean space. Being a regular polyhedron means that the faces are congruent (identical in shape and size) regular polygons (all angles congruent and all edges congruent), and the same number of faces meet at each vertex.