[OSM-talk] OSM very old data

[Tom Ka]

Thank you, I was thinking about similar way too.

Best tkk.

so 26. 10. 2019 v 23:22 odesílatel Frederik Ramm <frederik at remote.org> napsal:
>
> Hi,
>
> On 25.10.19 16:18, Tom Ka wrote:
> > OK, one question that remains unanswered will be: what was the first
> > object in Czech republic :-)
>
> Nodes are generally numbered in ascending order, and have been from the
> start. Since anything that can be mapped either is a node or depends on
> a node, it should be possible to find the node with the lowest node id
> in the Czech Republic.
>
> I'll offer https://www.openstreetmap.org/node/172508 - the web site says
> "Version #1 · Changeset #209315 - edited Tue 06 Feb 2007". At the same
> time this node is already present in the file called
> "planet-060501-FromLA2.osm.bz2" which purports to be from May 2006.
> Subtract 8 from the node ID and you get a node where the API claims it
> was first edited in August 2005, so something is a bit fishy here with
> regards to the exact timestamps. Nonetheless, 172508 seems to be the
> lowest node ID in the country. Incidentally it is still the lowest node
> ID in the country today, but it is also the lowest node ID in that old
> planet file.
>
> Bye
> Frederik
>
> --
> Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"
>
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