The WebXR Developer Summit Hosted by Trevor Flowers was the first event of the WebXR Summit Series. It was inspired by acceptance speeches from The 1st Polys - WebXR Awards and was held on May 25, 2021, convening pioneers and leaders in WebXR and the XR Industry. It's focus on coding for WebXR enlightened many to the possibilities and methods of delivering of XR content delivered to browsers. This event inspired the WebXR Summits that followed it and stands as a milestone in bringing awareness of the possibilities of WebXR to the Community.