Time to Change Your 1981/2015 Marvel Wallpaper April 1, 2015January 10, 2017 andertoons Happy April! Just a reminder that if you’re using my 1981/2015 Marvel calendar for your desktop wallpaper, it’s time to update. Click on the image below for April’s 2560 x 1200 image: Wanna grab the other months? Here’s all 12 for you! Enjoy!