Thousands of street parties are planned around the country, repeating a tradition that began with the queen’s coronation in 1953. The jubilee is giving many people — even those often indifferent to the monarchy — a chance to reflect on the state of the nation and the huge changes that have taken place during her reign. Former Prime Minister John Major — one of the 14 prime ministers of the queen’s reign — said the monarch’s stoic presence had helped steer the country over the decades.