Indian number symbols and 141, 143, 148, 150–1, 154, 157, 163–4
Oksapmin and 238, 242, 252
ready reckoners 174
Roman system of hand-signs for numbers and 149
subitising and 27–8
suanpan/soroban and 202
art, cave 49–56, 57
artist incubation system 223
Aryabhata 139
Assur 85–8
Assyria 69, 80, 84, 86, 87, 88, 89, 90–1
astrolabes 154
astronomy 138
Arabic numerals and 154, 160, 161–2, 173–4
astronomical instruments 154
astronomical tables 148, 149, 154, 160, 162, 173–4
Babylonian astronomical number writing 83
cuneiform number symbols and 83
Mayan calendar 273, 278
punched-card machines and 217
Regensburg and 161–2
Sanskrit/Indian 138–9, 143, 145–6, 148, 149–50
Toledan 160–2, 173–4
Athens, ancient 2, 101–11, 103, 132
Athenian Council 109
money in 110
voting/democracy in 101–11, 103, 132
attention economy 223
Augustine, St 116
Aurelius, Emperor Marcus 112
aureus (gold piece) 112
Australia
aboriginal 51–2, 226, 227–34, 240–1, 242, 250, 252
Anindilyakwa and 227–34
humans reach 43, 231
languages of 226, 231, 232–4, 250
New Guinea and 235–6, 238
Oksapmin people and 240–1, 242, 250, 252
weather journals in 175
Austronesian languages 226, 250–1
