I always find my history not complete when using tmux. I started using these functions in my profile to collect everything. I don't remember the source of the functions.

  log_bash_persistent_history()
  {
      [[
          $(history 1) =~ ^\ *[0-9]+\ +([^\ ]+\ [^\ ]+)\ +(.*)$
      ]]
      local date_part="${BASH_REMATCH[1]}"
      local command_part="${BASH_REMATCH[2]}"
      if [ "$command_part" != "$PERSISTENT_HISTORY_LAST" ]
      then
          echo $date_part "|" "$command_part" >> ~/.persistent_history
          export PERSISTENT_HISTORY_LAST="$command_part"
      fi
  }

  run_on_prompt_command()
  {
      log_bash_persistent_history
  }


  alias phgrep='cat ~/.persistent_history|grep --color'

I like the idea of a hub, as I do a lot of work inside docker containers and vms -- so this could be tailored to help me collect all my history.