And many of them has brought crowds of people wanting to get a close-up view.
Some were well-planned and organised visits by the Royal family while others were much more impromptu occasions.
Take a look at our selection and see how many you attended.
9. Tell us more
Which momentous events do you remember from Hartlepool's past? Tell us more by emailing [email protected]. | JPIMedia Resell Photo: hm
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