According to INSIDER cakes might just be the king of desserts (after all, it's the universally accepted way to celebrate your birthday and wedding!), but have you ever wondered just  how many cake varieties there are and how cake trends have evolved over the years?. Let stroll down memory lane. 1950s Upside Down Cakes -  Pineapple Upside Down Cakes According to most historians, the late 1800s was when the term “upside down cake” first began appearing.  Up until that time, this type of cake was referred to as  skillet cakes .  This was because ovens had not always been common or reliable, skillet cakes were born of practicality.  Cakes were made in the popular cast-iron skillets on top of the stove and then served flipped over. The first upside-down cakes were made with seasonal fruits such as apples and cherries. In 1925, the Hawaiian Pineapple Company in the US sponsored a contest calling for pineapple recipes with judges from th...