There is an abacus museum in Ono City. The year is marked in orange - 2012.
A nostalgic visit to the abacus museum:
"Soroban World Map" - and the position of the continents is little different in Japan:
Maneki-neko to the left, the lucky cat:
8 August seems to be the Abacus Day:
Old methods of counting:
And a history of counting tools, starting with Mesopotamia:
Mikoshi - a portable shrine made of ebony and rosewood, 85 cm x 60 cm x 60 cm, using about 11,000 colourful beads to build it within six months. It takes about 100 abacuses of 23 digits for so many beads. So neat!