The Story of Civilization by Will and Ariel Durant covers from ancient Greece to around the time of Napoleon. The 11 Volumes are available via Amazon for Kindle. I got lucky back in the 90's and found a complete set in hardcover for only $45.00 total(brand new each volume was around $20-30.00) and while the Kindle version isn't cheap (some are around $14.99) it does give a overview of history.
http://en.wikipedia.org/wiki/Story_of_Civilization
Internet archive has a CD of the books as well apparently though I have no idea how well it works.
http://www.archive.org/details/Story_of_Civ_CD
http://www.amazon.com/s/ref=ntt_athr...=Will%20Durant