TEST 235Cambridge IELTS 15 · Questions 31–40Early History of Keeping CleanComplete the notes below.Write ONE WORD ONLY for each answer.Early history of keeping cleanPrehistoric times:–water was used to wash off 31Ancient Babylon–soap-like material found in 32 cylindersAncient Greece:–people cleaned themselves with sand and other substances–used a strigil – scraper made of 33–washed clothes in streamsAncient Germany and Gaul:–used soap to colour their 34Ancient Rome:–animal fat, ashes and clay mixed through action of rain, used for washing clothes–from about 312 BC, water carried to Roman 35 by aqueductsEurope in Middle Ages:–decline in bathing contributed to occurrence of 36–37 began to be added to soapEurope from 17th century:–1600s: cleanliness and bathing started becoming usual–1791: Leblanc invented a way of making soda ash from 38–early 1800s: Chevreul turned soapmaking into a 39–from 1800s, there was no longer a 40 on soap.