As far as I have learned,
Clarke 1866, North America
Clarke 1880, South Africa
Does "Clarke 1886" even exist? or just a typo? I have come across the term a few times
I'm thinking it's a typo. I did a search in ArcGIS Pro for 1886 in the XY Coordinate Systems available and there were no results returned.
I think so. Thanks, Robert.
Maribeth Price once made the mistake in Mastering ArcGIS. It was corrected in the latest editions.
See North American Datum - Wikipedia
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