I recently was watching an episode of the Discovery Channel and it seems an Unidentified Flying Object similiar to a disk crashed into a windmill back in the 1880s. I will try to find out where though. It seems UFOs have a hard time avoiding windmills at times.
I did however find this wikipedia article, so this happened in the United States first supposedly, of course there was a bit of a cover up wouldn't you know it.

http://en.wikipedia.org/wiki/Aurora_Texas_UFO_Incident



http://www.chron.com/disp/story.mpl/front/4587362.html

I still think this is all just a unexplained natural "anomaly" brought on by some unexplained natural "weather phenomenom". And, and we are the only advanced intelligent creatures in the Universe and any evidence leading to another race of beings from off world, interdimensional or extradimensional is unlikey if not impossible and highly improbable.

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"When the first ship arrived, we were all on the ridge with weapons pointed skyward, then the first beam cut a portion of the ridgeline from under us." "First 3 troops broke ranks, then 8...then the second beam vaporized an armored troop carrier--soon after that we were all running in terror." Evolutionary War I November 11, 2011 at 11:11am Yosemite National Park