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[whatwg] Dates BCE

From: David Singer <singer@apple.com>
Date: Thu, 30 Jul 2009 09:34:29 -0700
Message-ID: <p06240884c6977ad7ab95@[]>
At 11:16  -0500 30/07/09, Tab Atkins Jr. wrote:
>  > 1) Machine readability.
>This begs the question.

raises the question.  begging questions is assuming the answer in the 
premise of the question.

>Why do you need machine readability for the
>dates in the Darwin journals?  More specifically, why do you need
>machine readability in a standardized fashion currently expected to be
>used primarily for adding dates to calendars?

It allows you to build databases with timelines, that span documents 
on the web from diverse sources.

>>  2) Consistency across websites that mark up dates.
>What form of consistency?  Date format consistency?  This varies by
>use-case, region, and language.  Machine-format consistency?  You then
>have to answer why such consistency is important - what does it let
>you *do*?

It would allow you to determine that *this* event reported in an 
arabic text with a date referring to a caliphate was actually almost 
certainly *before* this *other* event reported in a byzantine text 
with a date that is on the indiction cycle.  The experts in arabic 
and byzantine texts individually might well have the skills to 
convert these dates to a uniform day-labelling system, whereas the 
interested reader might have the skills in one or the other, but 
maybe not both (or perhaps even, neither).
David Singer
Multimedia Standards, Apple Inc.
Received on Thursday, 30 July 2009 09:34:29 UTC

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