History bot is used to change history at any point of time. it will continue on that timeline that you made you can even change one part of the timeline you don't like. You can restart a timeline by doing /restart. Every timeline is sequence numbered but if you change that one it will change the rest that it already made. To change a part of the timeline, do /changenumber at the end of number put the sequenced number of that timeline it will start at the beginning of all events.