The History page in its current form is very good (I don't remember seeing it when I used the dApp the first time). I totally understand why I would need to go back in time to understand what was voted in my absence.
However, for less technical people, I think having the opportunity to add short descriptions of every past action would be nice: "deposit X amount of token", "send X money to Alex", "place X into Youves vault"…. I would argue that these messages do not need to be stored on the blockchain (and actually probably shouldn't, for privacy reasons).