"The Launch Of The Apollo 11 Mission"

"Just days before its scheduled launch in July 1969, the final go-ahead was given for the Apollo 11 mission, even with existing technical issues. This decision led to the first humans landing on the Moon. The successful mission met a national objective and represented a key milestone in space exploration."
Lee's orders to Hill were lost by a courier who was on his way to deliver them to Hill.
The document was Lee's orders to Hill, which also showed the disposition of the Lee's units, NOT McClellan's.
And what made finding the plans historically significant was the fact that McClellan DIDN'T act on them in time to take advantage of them. In fact, that's why McClellan was relieved of command after the battle.
Talk about getting the story ass backwards!
What the description is about and what you're saying are two different things. Crossing the Alps was not without casualties for Hannibal, though I can't say whether this one, in particular, was so. He did replenish forces along the way, too.