The Clean Air Act

I was driving home, listening to the news on the radio and only semi-engaged. I heard that the Chancellor was about to make a statement about the Autumn budget.  I wondered how that, at times, 'the news' delivers us content that is apparently of tremendous importance - but how much of it really is what we might call properly Historic?

That lead me to recall a book I own, a high level chronology of British History, by year and month in snippets of facts and headlines.  Some years have more to engage with than others, each snippet is expressed in a single one sentence line. The only occurrence of any consequence at all in 1202, for example, was 'the death Queen Eleanor widow of Henry II'. More recently, 1968 is headed simply 'The Clean Air Act'. January 1st sees 'C. Day Lewis appointed poet laureate', on January 15th 'twenty are killed in Scottish hurricane'.

I wondered whether what I was hearing on the radio, would make the page in that book. Then I wondered why I might want to record something, aside from assisting in the very act of remembering, what purpose is served and what are my selection criteria for an entry in the history book?