Whenever someone or the other thinks about anniversaries and the like, they would usually assume that the people whose anniversary is currently being discussed are already married. The reason behind this is that there is a general assumption in society that only marriage anniversaries are worth celebrating once all has been said and is now out of the way, but the truth is that you can celebrate relationship anniversaries as well and these events might just be even more beautiful since they would not have been precipitated by any kind of legal agreement or contract.
That having been said, there is one gift that you might want to give on an anniversary according to Madeline Blackstone that would make said event extremely special. This gift would basically be to propose to your partner! If the two of you have been together for a really long time then there is pretty much no reason for you to avoid doing this at all. In fact, proposing on an anniversary can potentially make your union even better than might have been the case otherwise since your partner would love the fact that you turned it into an actual anniversary present.
Doing something like this can really enable you to help yourself start your marriage the right way. A long term relationship will become even better once the two of you are married, and you can plan the wedding in such a way that it would be exactly one year after the proposal date thereby allowing you to have the exact same date both for your wedding as well as the start of your relationship along with the day on which you ended up proposing as well!