| Discovery Type | Historical Relics |
| Discovery Name | General Seki's abacus |
| Rank | ★★★★★(5) (Number of Stars on Discovery Name card) |
| explanation | Ancient Chinese abacus (Xuanban). There is a legend that it was invented by Guan Yu, a famous military commander in the Romance of the Three Kingdoms, but it is said that it was used in ancient times even before that. The abacus, in which beads are threaded through a skewer, is said to be a later invention, and the beads are oval in shape, with two beads on the top (top) and five beads on the ground (bottom). |
| Era | |
| Deck Points | 7 (Required Deck Points for debate deck) |
| Difficulty | (Rank of skills required for discovery) |
| Experience | (For adventure jobs. Excluding company benefits, beginner bonuses, etc.) |
| Remarks | Legacy Wisdom of Numbers/World Calculation System Bottom Right |
| 最終更新 | 2020-07-17 21:22:05 Koumeitan |