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Date-Time description

1819-02-20

Temporal reference system used

Gregorian Calendar

Day (unit of temporal duration)

(inverse of) at some time within
Time-Span, Time-Span
1819-02-20
Time-Span of Birth, Ludwig Simon

is time-span of

Ludwig Simon

Time-Span, Time-Span
1819-02-20
Time-Span of Birth, Alfred Escher

is time-span of

Alfred Escher

Day
---20
temporal unit type

Day (unit of temporal duration)

Month
--02
Year
1819
-1819
1819-02-20
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