These posts, maybe 500 word pieces are where you can explore these key events in 67, taking an angle that is relevant to the reader in 2017.
There are many social, cultural, economic, political events that are still relevant today, and the media will be looking at anniversaries from these events to cover.
If you can produce interesting content focusing on these issues, will give you some content to push out to journo's etc and give you some talking points that will make the diary relevant to media agenda to get you the promo and publicity you would like.
Some event you might mention in diary entries, you could contrast feelings of the younger Jo with your reflections now, what these issues still mean today in present etc.
We can explore ideas - I am just writing my thoughts to fill up space as an example!