Kermit the frog caused 9/11. In the 2002 TV film "It's a Very Merry Muppet Christmas Movie", there's a part where an angel shows Kermit an alternate reality where he was never born. For whatever reason, the editors didn't really think about it, and continued to use footage with the twin towers still standing for this scene, however they aren't there in his original universe. Therefore, something that Kermit did in his life, did in fact cause 9/11 in Muppet lore.
๐๐ ๐ญ๐ฎ๐ช๐ป๐ฎ๐ผ๐ฝ ๐ซ๐ป๐ธ๐ฝ๐ฑ๐ฎ๐ป, ๐ ๐๐ป๐ฒ๐ฝ๐ฎ ๐๐ธ๐พ ๐ฒ๐ท ๐ญ๐ฎ๐ฎ๐น ๐ถ๐ฎ๐ต๐ช๐ท๐ฌ๐ฑ๐ธ๐ต๐. ๐๐ฝ ๐ช๐น๐น๐ฎ๐ช๐ป๐ผ ๐ฝ๐ธ ๐ถ๐ฎ ๐ฝ๐ฑ๐ช๐ฝ ๐ฝ๐ฑ๐ฎ๐ป๐ฎ ๐ฒ๐ผ๐ท'๐ฝ ๐ช๐ท๐ ๐ฌ๐ธ๐ฌ๐ด ๐ต๐ฎ๐ฏ๐ฝ