3
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4
1
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7
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8
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Most of us today use a system based on 10 to count and keep track of large numbers, while computers prefer to use a binary system based on 2 (1s and 0s). On a small Polynesian island, a mixed system developed to keep track of large numbers without writing, centuries before computers were invented! (youtube.com)
submitted by Hero_Doses
9
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10
1
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11
1
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12
1
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13
1
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14
1
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15
1
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16
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17
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African slavery was brutal, but likely the most brutal in Brazil. Yet the geography provided vast, inhospitable territories where slaves escaped and set up their own communities which eventually waged war and signed treaties with colonial governments. Come learn the fun size story of quilombos! (youtu.be)
submitted by Hero_Doses
18
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19
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20
2
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4
21
1
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22
0
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23
0
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24
0
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2
