https://techcrunch.com/2021/04/07/google-i-o-will-return-as-a-virtual-event-may-18-20/

When the pandemic arrived in the U.S. early last year, companies scrambled to figure out what to do with their long-standing, in-person developer events. For Apple and Microsoft, that meant going virtual – something companies have done with mixed results.

For Google, it meant calling off I/O all together. The company canceled the developer conference traditionally held each May at Mountain View, California’s Shoreline Amphitheater.