Marcus, South Dakota

Marcus is an unincorporated community in Meade County, in the U.S. state of South Dakota.[1]

History

A post office called Marcus was established in 1909.[2] Marcus Connelly, an early postmaster, gave the community his name.[3]

gollark: Right, yes, my way is for *two* points.
gollark: `y_1` is the `y` of the first point, I'm sure you can infer the rest.
gollark: `m = y_1-y_2/x_1-x_2`, `c = y_1 - mx_1`, I think.
gollark: You can rearrange the equation for `c` and substitute in one of the points to get `c`.
gollark: Straight lines have the equation `y = mx + c`, where m and c are constants. `m` is the gradient, which is just the difference in y between those points divided by the difference in x.

References
  1. U.S. Geological Survey Geographic Names Information System: Marcus, South Dakota
  2. "Meade County". Jim Forte Postal History. Retrieved 2 February 2015.
  3. Federal Writers' Project (1940). South Dakota place-names, v.1-3. University of South Dakota. p. 49. Archived from the original on 2016-10-27.



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