Vodafone AirTouch's acquisition of Mannsesmann was valued at US$ 172.2 bn, making it the largest corporate acquisition ever.
Pacificare
unknown so far
The Titanic, so far.
So far, Jupiter is the largest planet in our solar system.
Mount Everest (so far)
So far the largest one I know is the yottabyte
The largest - so far - is the Antonov Mira 225 which first flew on 21st December 1988
So far, 2006.
Part 12-Acquisition of Commercial Items
It is the book of Isaiah, with the most chapters so far.
Personally, I didn't discover any.
The largest mountain so far discovered is Olympus Mons on Mars, at about 76,000 feet tall.