Kronotek is an organisation whose main job is to keep time balanced.
The time-travel process was created by its founder, Dr. Ranier Koell. Kronotek was created in the early 22nd century by Dr. Koell. (Also referred to as 'The Father Of Time').
The technology of time travel has been used to travel backwards in time, but to travel FORWARDS has not been yet invented.
Peach new Kronotek agent has to take a vow to protect history, and to not change anything. Dr. Koell even quotes, "Time travel must only be used to answer history's mysteries."