Starfleet Academy. Courses. Temporal Mechanics: Wars and Conflicts. Temporal Agreements and Directives. Time Travel. Temporal Prime Directive: All Starfleet personnel are strictly forbidden from directly interfering with historical events and were required to maintain the timeline and prevent history from being altered. The directive also restricted people from revealing too much about the future so as not to cause paradoxes or alter the timeline, and for those in the past to learn about futures