By: Anna Yarbrough

 The abacus was invented in Babylon in 2400 B.C.  This invention was the first calculator.  s.com/abacus.html s.com/abacus.html

 These pigeons were used to deliver messages to other cities, houses, etc.  The Homing Pigeons were used during 776 B.C. 

 These messengers were fairly common in Egypt and China.  These messengers were here during 200 B.C B.C.  stamps.com/article/postal -services-history-and- origins.html stamps.com/article/postal -services-history-and- origins.html

 The Eberhard Company was the one to produce the first pencils with erasers on the end.  This came to be in 1756  wnloads/pdf/reports/Ebe rhard_Faber.pdf wnloads/pdf/reports/Ebe rhard_Faber.pdf

 This invention was invent by Claude Chappe in  wiki/images/1/17/Dilhac. pdf wiki/images/1/17/Dilhac. pdf