calendar
Topic | Replies | Views | Activity | |
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Were Symbols in Paleolithic Cave Paintings the First Calendar? | 3 | 229 | 27 May 2023 | |
The Doomsday Algorithm: Mentally Calculate Day of Week for Any Date | 0 | 316 | 1 November 2021 |
Topic | Replies | Views | Activity | |
---|---|---|---|---|
Were Symbols in Paleolithic Cave Paintings the First Calendar? | 3 | 229 | 27 May 2023 | |
The Doomsday Algorithm: Mentally Calculate Day of Week for Any Date | 0 | 316 | 1 November 2021 |