Have any of you guys considered that part, that Michael Bay and his fellas have not calculated an estimated timeline for the events where Sam's grandgrandfather "Archibald Witwicky" found Megatron??? First of all, we heard it was in the 19th century (Sorry i forgot when the date was mentioned in the movie) if I'm not wrong. So lets do some math. In 2007 where the movie takes place, Sam is around 17, so he is supposed to be born 1990. Let's say his dad was 25 when Sam was born which makes his dad's birthdate in 1965. Let's say his grandfather became very late dad at an age of 40. So Sam's grandfather might be born in 1925. Now let's say his famous grandgrandfather also became dad at an age of 40 which makes him being born in 1885. Now, even if his grandgrandpa found Megatron at 1899, he could only be a teenager. But he was already an old man displayed in the flashbacks, looking more at an age of a grandpa!