
They are far too small to be seen with the naked eye, but bacteria are one of the most widespread forms of life-and one of the oldest.This series takes readers (Ages 8-12) on a historical journey, examining how people coped in the past and how they developed ingenious...

They are far too small to be seen with the naked eye, but bacteria are one of the most widespread forms of life-and one of the oldest.This series takes readers (Ages 8-12) on a historical journey, examining how people coped in the past and how they developed ingenious...


Each title in this new series takes readers on a historical journey, examining how people coped in the past and how they developed ingenious ways to make life safer and less unpleasant. Each book features full-color cartoon-style illustrations and hi