Complex sentence: For example, Elizabeth II was crowned on 2 June 1953, having ascended the throne on 6 February 1952; the date of her coronation was announced almost a year in advance.
Split into simpler sentences: For example, Elizabeth II was crowned on 2 June 1953, having ascended the throne on 6 February 1952. The date of the coronation was announced in June 1952, almost a year in advance.