While Google changed its logo Sunday to "Googlle" to celebrate its 11th birthday, the company has a history of altering its logo for a variety of celebrations. Here are some choice examples.

Step 4: You can return to the main Google Slides screen anytime by selecting the Google Slides logo on the top left, beside the name. Use views in Google Slides.

Google Slides not only lets you select and apply any of the built-in presentation themes, ... When editing slides, this logo will display on every slide with the Title slide layout.

Google celebrated modern painter Jackson Pollock's birthday on Jan. 28, 2009, with a logo crafted in his artistic style. It's abstract, obviously. Credit: Google.com logo gallery ...

For example, Pichai’s first slide had seven logos for Google’s primary products (Search, YouTube, Android, etc.) and the following text: “1 Billion+ Users.” ...