of homosexuality. There was a rise in the incidence of divorce and abortion, and a resurgence of the women's liberation movement, whose campaigning helped secure the Equal Pay Act and the Sex Discrimination Act in 1975. The 1960s were a time of greater disregard for the establishment, with a satire boom led by people who were willing to attack their elders. Pop music became a dominant form of expression for the young, and bands like the Beatles and the Rolling Stones were seen as leaders of youth culture. Youth-based subcultures such as the mods, rockers, hippies and skinheads became more visible. Reforms in education led to the effective elimination of the grammar school. The rise of the comprehensive school was aimed at producing a more egalitarian educational system, and there were ever-increasing numbers of people going into higher education. In the 1950s and 1960s, immigration of people to the United Kingdom, mainly from former British colonies in the Caribbean, India and Pakistan, began to escalate, leading to racism. Dire predictions were made about the effect of these new arrivals on British society (most famously Enoch Powell's Rivers of Blood speech), and tension led to a few race riots. In the longer term, many people with differing cultures have successfully integrated into the country, and some have risen to high positions. 1980s One important change during the 1980s was the opportunity given to many to buy their council houses, which resulted in many more people becoming property owners in a stakeholder society. At the same time, Conservative Margaret Thatcher weakened her bitter enemy, the trade unions. The environmentalism movements of the 1980s reduced the emphasis on intensive farming, and promoted organic farming and conservation of the countryside. Religious observance declined notably in Britain during the second half of the 20th century, even with the growth of non-Christian religions due to immigration and travel (see Islam in the UK). Church of England attendance has particularly dropped, although charismatic churches like Elim and AOG are growing. The movement to Keep Sunday Special seemed to have lost at the beginning of the 21st century. 1990s and the new millennium Following on from the resurgence of economic liberalism in the 1980s, the last decade of the 20th century was noted for a greater embrace of social liberalism within British society, largely attributed to the greater influence of the generation born in the socially transformative 1960s.