Google Doodles Quiz - Part 7...Historic Milestones & Achievements

In this prior post we briefly described Google Doodles and had a quiz.

Now it's time to guess the Historic Milestones and Achievements whose dates were recognized with a Doodle:

#1

#2

#3

#4

#5

#6

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Answers below:

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#1    Berlin Wall starts to fall
#2    First Ascent of Mt. Everest by Edmund Hillary
#3    First Hot Air Balloon Flight
#4    First [Airplane] Flight
#5    First Human-made Object to Orbit the Earth (Sputnik)
#6    First Human Landing on the Moon