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Date-Time description

1887-12-13

Temporal reference system used

Gregorian Calendar

Day (unit of temporal duration)

(inverse of) at some time within
Time-Span, Time-Span
1887-12-13
Time-Span of Birth, George Pólya

is time-span of

George Pólya

Time-Span, Time-Span
1887-12-13
Time-Span of Birth, Friedrich Eymann

is time-span of

Friedrich Eymann

Day
---13
temporal unit type

Day (unit of temporal duration)

Month
--12
Year
1887
-1887
1887-12-13
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