page 16: '15'->'14'
page 20: 'betweeen'->'between'
page 77: '75000'->'7500'
page 99: 'Memes'->'Menes'
page 105: 'hestitate'->'hesitate'
page 123: 'beginming'->'beginning'
page 126: 'anciest'->'ancient'
page 286: 'writtten'->'written'