How were adventure playground of the 1960s different from playgrounds of the 1920w

The five possible reasons explaining why art may be created are

Bile juices in the breakdown of fats. an injury to the (liver, mouth, or salivary glands) may cause a decrease in the production of bile juices. this decrease in bile juices may lead to decreased production of (amino acids, carbohydrates, or fatty acids)

What did michealangelo do when hired by the church to paint the sistine chapel ?