The average singleton baby is about 51cm (20in) long from head to toe and weighs approximately 3.4kg (7.5 lb) at birth. However, anything between 2.5kg (5.5lb) and 3.8kg (8.4lb) is a healthy weight for newborns. Twins tend to be lighter than singleton babies.
The depression originated in the United States, after a major fall in stock prices that began around September 4, 1929, and became worldwide news with the stock market crash of October 29, 1929 (known as Black Tuesday). Between 1929 and 1932, worldwide GDP fell by an estimated 15%.
The Great Depression that began at the end of the 1920s was a worldwide phenomenon. By 1928, Germany, Brazil, and the economies of Southeast Asia were depressed. By early 1929, the economies of Poland, Argentina, and Canada were contracting, and the U.S. economy followed in the middle of 1929.owever, the stock market collapse did not cause the depression; nor can it explain the extraordinary length and depth of the American contraction. In most countries, such as Britain, France, Canada, the Netherlands, and the Nordic countries, the depression was less severe and shorter, often ending by 1931.