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1. Introduction

2. Non-positional systems

2.1. Numerical notation in ancient (Northern) Africa
2.2. Other historical systems of numerical notation in ancient (Northern) Africa
2.3. Berber numerals
2.4. Bambara numerals
2.5. Mende numerical notation
2.6. Ndebe Igbo numerals

3. Alphabetic numerical notation

4. Positional notation

4.1. Vigesimal system: Obεri Ɔkaimε script
4.2. Decimal systems: left-to-right running scripts
4.3. Decimal systems: right-to-left running scripts

5. Concluding remarks