Google is celebrating 10 successful years of its mobile operating system Android, which claims almost 2 billion active devices as per the present scenario. Of course, Android has officially been around for more than 10 years now and it was originally rolled out on September 23, 2008. But now talking about all things Google, the actual birthday is the cause for some confusion.

Now, Google has posted October 22, 2018 as officially marking ten years of Android. Even Google CEO Sundar Pichai wished Android a Happy Birthday for October 22, 2018. But as noted previously,  Android did technically turn 10 back in September, if one takes into account the date, when the original version and source code was released.

Others also consider November 5, 2007 as the original birthday for Android, since that’s when the beta was released, though the software development kit (SDK) was rolled out later on November 12. By that logic, Android already turned 10 years last year.

So why is Google giving much emphasis to October 22? 

As the official blog post notes, October 22 marks ten years of the “first version of the Android operating system with the T-Mobile G1,” and when Android Market (the original name for the Google Play Store) were launched. This T-Mobile phone with Android 1.0 went on sale in the US on October 22, 2008, and thus it clears the logic for picking this date.

However, Android Market launched on September 23, 2008. The full fledged Google Play Store, actually came much later in March 2012.

Quite interestingly, the Google blog post also takes a look at all the variants of Android from Cupcake (version 1.5) right down to Android Pie. To this, the post notes, “the operating system itself has gone through some major transformations, too. The G1 ran on Android 1.0—a version so early, we didn’t even name it after a dessert. The debut included features that you know and love today like pull-down notifications, sharing content across apps and multitasking between apps.”