Google's Birthday Celebration

From 4th Birthday Celebration of Google doodle.

Browsing through the Google doodle archives further adds to the confusion. The Google doodle for its 4th birthday is dated September 27 but the 5th birthday doodle was on September 8, a year later it becomes September 7, followed by September 26 for its 7th birthday. From the 8th year onwards Google seems to have settled for September 27.

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