*1*

alot more people would be alive (but probably died by now)

that shitty movie wouldn't have been made

some other boat may have gone down there thinking it was safe and have done the same thing as the titanic at a later date.

*2*

See Red Dwarf Episode "Tikka To Ride" for JFK.

Luther King? hmm... well, i don't know. would it have much? his ideas in life are what took affect surely? oh and possibly no MLK day.

*3*

Less famine, death and suffering at the time

peoples families living in different regions since didnt travel for work.

bit shaky on this one since i'm not really tuned up on what happened then.

*4*

Some advances in medicine may not have come about until later,

alot less people would have died,

areas of towns and cities not shut down completely and left for ruin until alot later,

museums wouldn't have black death exhibits.