In The diffusion of counting practices (1960) Seidenberg argues that counting was diffused from one centre and was not discovered again and again as is commonly believed.
Sa Ang pagsasabog ng bilangin ang mga gawi (1960) Seidenberg argues na bilangin ay diffused mula sa isang center at noon ay hindi natuklasan muli at muli bilang ay karaniwang sumampalataya.