It is believed that oracle cards began to develop out of tarot. They are similar in that they are both used as divination tools; ways to get spiritual guidance. Oracle cards can be traced back to the 19th century in France. The first oracle card deck is said to have been developed by Marie Anne Adelaide Lenormand (Madame Lenormand). Then in the latter half of the 20th century Oracle cards began to spread and become quite popular. There are a variety of differences among various oracle cards. Unlike tarot, oracle cards do not follow a set pattern of arcana, suits, court cards, pip cards, or any of that. The messages can be just images or the oracle cards might contain words. The number of oracle cards in a deck can also vary although it is generally smaller than a tarot deck. Most of the oracle cards in my possession have 44 cards. Some believe the number 4 is associated with the angelic realm. When the number 4 shows up repeatedly, it may be that the angels are letting you know they are around you and are just waiting for you to ask for their help.