For once I wasn’t looking for the geographic center of something, as problematic as that could be given various definitions. Not in Michigan. And for the record, the town of St. Louis claimed to be the "middle of the mitten." It moved to a spot a few miles north-northwest of Cadillac taking the Upper Peninsula into account. However, that was beside the point. Instead I came across two Michigan place names while searching for completely different things. Their similarities deserved closer scrutiny.
Center Line, Michigan
Actually I started by investigating Warren, Michigan and I noticed a hole. A big one. A nice rectangle right in the middle of it (map). Naturally I drilled down and discovered the town of Center Line. The much larger city of Warren completely surrounded it. Center Line described itself as "a small close-knit community of 8,257 residents… nestled inside the state’s 3rd largest city"
Warren and Center Line both began as villages in a rural corner of Macomb County. However, Center Line incorporated first, becoming a city in 1936. Warren also started growing rapidly around that same time. Warren Township minus Center Line incorporated as a city in 1957. It simply exploded in population to the point that it completely overshadowed Center Line over the next couple of decades.
I also wondered about the name. There didn’t seem to be any line and it certainly didn’t seem to be the center of anything other than the city of Warren itself, which it predated anyway. The town’s website mentioned "several theories" which also meant nobody really knew the answer. The most plausible explanation seemed to be,
There were three Indian trails leading from the fort at Detroit to other trading posts in the northern wilderness. The first was the river trail which followed the river and ended at Port Huron; the second was the Saginaw trail and ended at Mackinaw at the Straits of Mackinaw. Through the center of the two trails, the Indians had beaten a trail which followed the "center line" [as observed] by the French.
The trail became Sherwood Avenue (map).
Michigan Center, Michigan
Later I also discovered Michigan Center. Center Line and Michigan Center fell nowhere near each other. A good 85 miles (140 kilometres) separated them. Nonetheless finding a second Center in Michigan excited me. It doesn’t take much to get me going.
The name derived from the Michigan Meridian. Benjamin Hough surveyed the meridian in 1815, marking 84° 21′ 53″ west longitude. Settlers then moved into the area and platted Michigan Center a few years later in 1837. However, the meridian didn’t pass directly through Michigan Center. I measured it. The meridian ran between Michigan Center and the neighboring town of Jackson. I guess they figured it was close enough. Who would really know? Seriously.
Fort Defiance, Defiance Ohio. Photo by Tim Tonjes on Flickr (cc)
Then I went down a little tangent. I wondered why Hough followed such an odd longitude when he surveyed the Michigan Meridian. The line actually pointed farther south into a neighboring state. There stood Fort Defiance at the confluence of the Auglaize and Maumee Rivers (map). A town called Defiance, Ohio later grew up there.
General "Mad" Anthony Wayne built Fort Defiance in 1794.
Following the Battle of Fallen Timbers, Wayne utilized Fort Defiance as his base of operations. He ordered the destruction of all American Indian villages and crops within a fifty-mile radius of the fort… Until the War of 1812, Fort Defiance served as one of America’s western-most outposts in the Ohio Country and helped protect local citizens from American Indian attacks…
Fort Defiance also figured in the 1807 Treaty of Detroit. The United States negotiated the treaty with several Native American tribes, namely the Chippewa, Ottawa, Potawatomi and Wyandot. Land to the east of a line drawn due north of Fort Defiance came under American control. That’s why Hough needed to survey that line. It served briefly as an international boundary.