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  Few advances, follow by the wooden leg and handpiece hook. Salesman, arm manufacturers design and create them.
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  In capua Italy was descovered the leg in 1858 (300 BC) materials: silver, bronze-wooden nucleus.
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  Taking into account all greek and roman discoveries, come back the prosthetic history.
 There were designed with silver, steel, copper and Wood.
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  Silver hands set into the hands, its movement was determined to certain reasing mechanisms and springs-loaded, suspender band belt
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  Ambroise Paré a frech militar surgeon considered the amputation and design father of modern prosthetic.
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  Peter Verduyn created the first prosthesis under the knee without locked mechanism.
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  Jammes Potts: wooden prosthesis with fitting, articulation knee and articular foot controlled by tendons of cat gut. (knee and ancle) “selpho leg”.
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  Sir James Syme: discovered a new ancle amputation method, the person only requires a foot prosthesis.
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  Benjamin Palmer: he improved Selpho´s, he added a spring, its appearance is softer, and the hidden tendons to pretend a natural movements.
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  Dubois parmlee: prosthesis with a sucking
 lace, polycentric knee, and a multi-articulated foot.
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  Gustav Hermann: affirmed that the use of aluminium instead of steel in order to be lighter and functional.
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  It´s created the American orthoprosthesis association (AOPA)
 - Nowadays it´s created with plastic, aluminiun and compound materials in order to be more functional
 - They are designed to the right size of each patient.
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  Prosthesis can help many people, in order to offer them a nice quality of life.
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  - Many people can have a different new life with prosthesis
- Every year people create new materials to improve it
- People can attend to differen activities
 
- 
  
  - disable: (make disabled)
- handicap: dated (disability)
- prosthesis: an artificial device to replace or augment a missing or impaired part of the body
 
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  - https://www.merriam-webster.com/dictionary/prosthesis
- https://www.google.com.co/search?q=benjamin+palmer+selpho&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiK5-Lrnd_SAhVLQCYKHXcaBy8Q_AUIBygC&biw=673&bih=618#tbm=isch&q=protesis+de+piernas+deportivas&*&imgrc=QqIjJouJXv-18M:
- http://www.amputee-coalition.org/spanish/inmotion/nov_dec_07/history_prosthetics.x20075.pdf
 
