Queen Elizabeth II was born on April 21, 1926, but her birthday is officially observed in June by proclamation each year. But in Australia, Queen’s Birthday is a national holiday celebrated on the second Monday in June (except Western Australia). It was first observed there in 1788, not long after the country was settled. June 4, the birthday of King George III, was set aside at that time as a holiday for convicts and settlers. After George V died in 1936, a date close to his birthday (June 3) was set aside to honor the reigning king or queen. Discuss
Source: The Free Dictionary