1. Rai Stones was a database (Micronesia)
2. Quipu Knots was a database (South America)
3. Hawala is a database. (Islamicate)
4. Kula Rings was a database (Melanesia)
5. Clay Tokens was a database (Mesopotamia)
6. Caribou Credits was a database (Sub-Arctic)
7. Seal Share System was a database (Greenland)
8. Palembang Tin-Ingots was a database (Indonesia)
9. Yukaghir hunting-credit was a database (Siberia)
10. Pigeon-Post Tally was a database (Mediterranean)
11. Aboriginal Message Stik was a database (Australia)
12. Bridewealth & Cattle Ledgers is a database (Africa)
13. Ortoq Bullion Network was a database (Cent. Asia)
14. Ottoman Defter Register was a database (Balkans)
15. Knife Money Registries was a database (China)
16. Mnemonic Tallies was a database (Scandinavia)
17. Wampum Belts was a database (North America)
18. Cacao-Ledger was a database (Mesoamerica)
19. Shroff Networks was a database (India)
20. Tally Sticks was a database (England)
21. Bitcoin is an immutable database (Global)
