<div dir="ltr"><div><div><div>Hi,<br><br></div></div>"1954..1973" means the object first appeared at an unknown date between 1954(-01-01) and 1973(-12-31). I mentioned the ".."-format in my mail from May 8 in the old thread. If we focus upon the ".."-format (I advocate this at the moment) start_date=1910 means start_date=1910-01-01..1910-12-31.<br><br>"before 1904" means that 1903 is the oldest verifiable date for that
object (see <a href="https://wiki.openstreetmap.org/wiki/Key:start_date#Approximations">https://wiki.openstreetmap.org/wiki/Key:start_date#Approximations</a>). So it could have first appeared between the beginning of time and 1903-12-31. So it means "[oldest date we technically take in consideration
(like 4,57 billions of years)]..1903-12-31".<br><br></div><div>Best regards,<br></div><div>Paul<br></div><div><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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