The beginnning is the first price of Bitcoin if you want to put it that way. But I guess the next chapter starts when Bitcoin break its ATH. So possibly the beginning of the next chapter for Bitcoin will be $1200. I hope Bitcoin will start its new chapter soon The road to $2000.
these "chapters" aren't necessarily determined based on the price. it is mostly based on the news and all the other things that are going on with bitcoin.
for example the next "chapter" can be when the ETF's fate is finally clear. or the next chapter can be when something changes about the block size. in any case the rise is going to continue but slowly without these things.