The Movie Timeline - be obsessive, be very obsessive
War of the Worlds - timeline
Aliens, possibly from Mars, bury giant tripods with pulverizing rays for a surprise invasion on a then non-existent human race.
Aliens leave Mor-Tax for their invasion on Earth, 40 years later.
Alien invasion lands on Mars, before sending a test mission to Earth.
Earth invaded by Martians.
Huge machines called "tripods" start to pulverize people in all world. (USA)