OH 5 (Olduvai Hominid number 5, also known as Zinjanthropus or "Nutcracker Man"; colloquially as "Dear Boy") is a fossilized cranium and the holotype of the species Paranthropus boisei. It was discovered in Olduvai Gorge, Tanzania, by archaeologist-paleontologist Mary Leakey in 1959.
Her husband and fellow scientist Louis Leakey initially classified the hominid as Zinjanthropus boisei and thought that it was an early ancestor of modern humans that lived approximately 2 million years ago. However, this contention was later withdrawn because of its robust australopithecine features and the discovery of Homo habilis soon thereafter.
Mary and Louis Leakey had conducted excavations in Tanzania since the 1930s, though most such work was postponed due to the outbreak of World War II. They returned in 1951, finding mostly ancient tools and fossils of extinct mammals for the next few years. On the morning of July 17, 1959, Louis felt ill and stayed at camp while Mary went out to Bed I's Frida Leakey Korongo (korongo is Swahili for gully; this one was named after Louis's ex-wife). Sometime around 11:00 a.m., she noticed a piece of bone that "seemed to be part of a skull" which had a "hominid look".
Ohio's 5th congressional district is in northwestern and north central Ohio and borders Michigan and Indiana. The district is currently represented by Republican Bob Latta. The district borders have changed somewhat from the previous redistrict as some of the easternmost counties were redistricted to other districts.
From 2003 to 2013 all of Crawford, Defiance, Fulton, Henry, Huron, Paulding, Putnam, Sandusky, Seneca, Van Wert, Williams, and Wood Counties were included in this district. Portions of Ashland, Lucas, Mercer, and Wyandot Counties were also a part of the 5th District.
All or part of twenty-one cities (whose population is greater than 5,000) are in the district.
The largest municipalities represented in this district include: