how to tag multiple old_name?
let's Let's say a street is known to have had name1 first, then name2, then name3. how How should this be tagged so that nominatim Nominatim would be able to search in all of them ?
them?
http://wiki.openstreetmap.org/wiki/Key:name suggests alt_name_1 (and so on) for alternative names, http://wiki.openstreetmap.org/wiki/Talk:Names#multiple_alt_names_or_loc_names.3F actually discourages that.
http://wiki.openstreetmap.org/wiki/Key:name#Values also proposes a way to specify years when the name was used, but how to handle the case when the sequence of the names is known, but the exact years when each was used - not ?
not?
Update: To clarify why it would be useful to map old names, in many cases the name change is not that long ago. There would still be printed materials referencing the old name, and in case of more recent changes, probably hundreds of websites using the old name still. Having such information in the map is useful today as people could be easily be given the old name and searching for it.it.
Another usecase is historical features like mounds or hills. While they might have one more prominent name, in many cases there are several other names they are or were known by.