Property:sortdate

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Description: Defines the date as a single number by which the item can be sorted automatically.
Type: Number


Format

  • Positive or negative decimal number in years.
  • Concerning sortdate values more accurate than years, the decimal positions are used in the format Y.MMDDhhmmss for convenience (i.e. 1990.0123 for 23 Jan 1990, not 1990 + 22÷365 = 1990.0603 vel sim.).
  • Negative values shall only occur as integer (i.e. without decimal positions), to avoid complications.
  • The value 0 is used for an unknown date.
  • Examples: -300 (for 300 BC), 1893 (for 1893), 1990.12312230 (for 31 Dec 1990, 10:30 p.m.), 0 (for unknown)

Guidelines

for determining the sortdate:

  • If absolute dates are known these are used
  • If approximate dates are known these are used, i.e. , e.g. "c. 250 BC" = -250 or "around the first quarter of the 1st century BC" = -75.
  • If periods of time are known the median point of time should be used, e.g. "4th century BC" = -350 or "125-40 BC" = -82.

Maps

Dating of archaeological objects:

Early and Middle Phases

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Marker 360.png earlier than 440 BC (38); Marker 030.png 440 to 376 BC (28); Marker 060.png 375 to 201 BC (38)

Late Phases

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Marker 090.png 200 to 101 BC (37); Marker 180.png 100 to 20 BC (185); Marker 240.png later than 20 BC (44); Marker 000.png undefined (69)

Please note that the value of the Property:sortdate is only the arithmetic mean of the object's dating. Absolute values used for archaeological periods are defined on Property:culture_archaeological.

Statistics

Objects

Number of pages in the Category:Object (366) per "sortdate" (value 0 omitted):

sortdate occurrence  
-720+
0 0.00 % show list
-670+
5 1.36 % show list
-620+
4 1.09 % show list
-570+
7 1.91 % show list
-520+
12 3.27 % show list
-470+
29 7.92 % show list
-420+
11 3.00 % show list
-370+
23 6.28 % show list
-320+
12 3.27 % show list
-270+
0 0.00 % show list
-220+
7 1.91 % show list
-170+
20 5.46 % show list
-120+
113 30.87 % show list
-70+
79 21.58 % show list
-20+
33 9.01 % show list
30+
9 2.45 % show list
80+
0 0.00 % show list
130+
0 0.00 % show list

Arithmetic mean: -165.814, Median: -100

Inscriptions

Number of pages in the Category:Inscription (404) per "sortdate" (value 0 omitted):

sortdate occurrence  
-720+
0 0.00 % show list
-670+
5 1.23 % show list
-620+
5 1.23 % show list
-570+
7 1.73 % show list
-520+
13 3.21 % show list
-470+
27 6.68 % show list
-420+
13 3.21 % show list
-370+
29 7.17 % show list
-320+
13 3.21 % show list
-270+
2 0.49 % show list
-220+
9 2.22 % show list
-170+
23 5.69 % show list
-120+
130 32.17 % show list
-70+
82 20.29 % show list
-20+
36 8.91 % show list
30+
9 2.22 % show list
80+
0 0.00 % show list
130+
0 0.00 % show list

Arithmetic mean: -166.733, Median: -100

References

Number of pages in the Category:Reference (1358) per "sortdate" (value 0 omitted):

sortdate occurrence  
1800+
0 0.00 % show list
1810+
0 0.00 % show list
1820+
4 0.29 % show list
1830+
2 0.14 % show list
1840+
3 0.22 % show list
1850+
5 0.36 % show list
1860+
20 1.47 % show list
1870+
24 1.76 % show list
1880+
17 1.25 % show list
1890+
20 1.47 % show list
1900+
20 1.47 % show list
1910+
24 1.76 % show list
1920+
18 1.32 % show list
1930+
22 1.62 % show list
1940+
17 1.25 % show list
1950+
39 2.87 % show list
1960+
65 4.78 % show list
1970+
112 8.24 % show list
1980+
188 13.84 % show list
1990+
238 17.52 % show list
2000+
253 18.63 % show list
2010+
218 16.05 % show list
2020+
49 3.60 % show list
2030+
0 0.00 % show list

Arithmetic mean: 1,982.466, Median: 1,995

Showing 20 pages using this property.
A
AE +
1,888  +
-100  +
-100  +
-100  +
-100  +
-100  +
-50  +
-50  +
-50  +
-625  +
1,896  +
2,003  +