macaques 13, 16, 23, 24
machines, counting 4, 5, 6, 185, 186–224, 225
abacus see abacus
beads see beads
cash register 217
computer 217–18
counting board see counting board
counting rods see counting rods
East Asia 5, 186–206, 215–24
Electric Tabulation Machine 204–6, 205
Hollerith tabulator 206–14, 210
internet 215–16, 218–10
mental calculation and 202–3
punched-card machines 204–5, 208–9, 212, 213–14, 217, 220
social media platforms 215–16, 218, 220–1
soroban/suanpan 186, 196–203, 198, 289
webtoons 215–16, 216, 218, 220–4
See also individual machine name
Maes, Nicolaes: The Account Keeper 166–8, 167
Maghrib 151, 155, 170
mahayuga, or ‘great age’ 138
Mahesvara 143
Maici River 279
Maimonides 151
Makassar 229
mammals 24, 28, 40, 249, 264, 287
Mangareva 249
al-Mansur, court of, Baghdad 148
Maori 248
Marcomannic campaigns 112
Marrakesh 147–8, 151
Matsuzaki, Kiyoshi 200–1
Mayan world 2, 271–8, 271
mealworm beetles 13
Mediterranean 31, 47, 50, 69, 73, 87, 88, 98, 99, 112, 151
Meiji restoration (1868) 206
‘mental abacus’ training 202–3
Mental Calculation World Cup 203
Mesoamerica 272, 273
Meteorological Society 179
