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The Henry System - Coggle Diagram
The Henry System
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Cores and Deltas
Delta - Triangular area, analogous to a river delta
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Before computers, fingerprint databases were held by police using a card filing system. The system converts the ridge patters on all ten fingers into letter classifications
Developed in 1900, this system was adopted by Scotland Yard in 1901
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Whorl - Has two deltas like a bulleye target, own core and Delta