If I mention something that isn't explained in Pt.1, it will be revealing in Pt. 2

Morning' Class. "Good Morning Miss Applebloom." Y'all may be wonderin' why I have a sheet covering the projector, I have a suprise lesson for y'all, can anyone guess? "How Canterlot was attacked by Changelings?" Bon-Bons daughter, Hershey, said. Now Hershey that is rude, many changelings have given up their ways of evil and only feed on Willing ponies. "How you thithter and her friendth defeated Dithcord?" Twist's daughter, Winter, said "Its not like you know, ya blank flank." Golden Fountain! I do not want to hear you say that in MY class! "Y-yes ma'am... never again." Now that we have that finished, we are going to learn about the Equestrian Industrial Revolution, it was inspired by the cider making machine of Flim and Flam-the Super Speedy Cider Squeezy 6000. Before ah continue, if you have a question, just let me know after ah finish. When Flim and Flam had finished their challenge with my family and friends, they got asked by Celestia herself to overlook some research on their machine. After a couple years of no word about this research by most of Equestria, many ponies ignored the research and assumed it was discontinued. After an event that left Celestia unable to keep her throne and Luna was left to manage Equestria, she revealed Celestia had stopped the research and got all the ponies working on it and within a year they made enough progress to rival the development of Canterlot.

If this Chapter is short, I apoligize, I have more planned from Pt. 2