The Employment and Social Insurance Act was passed in 1935 during the Great Depression by the government of R. B. Bennett as an attempted Canadian unemployment insurance programme. It was, however, ruled unconstitutional by the Supreme Court of Canada as unemployment was judged to be an insurance matter falling under provincial responsibility. After a constitutional amendment was agreed to by all of the provinces, a reference to "Unemployment Insurance" was added to the matters falling under federal authority under the Constitution Act, 1867, and the first Canadian system was adopted in 1940. Because of these problems Canada was the last major Western country to bring in an employment insurance system. It was extended dramatically by Pierre Trudeau in 1971 making it much easier to get. The system was sometimes called the 10/42, because one had to work for 10 weeks to get benefits for the other 42 weeks of the year. It was also in 1971 that the UI program was first opened up to maternity and sickness benefits, for 15 weeks in each case.