Errata

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'