Actually it’s more appropriately called the “Bellamy Salute” or “Roman Salute”.
How did it get memory-holed that Americans used to do this? Was it forgotten due to certain ‘changes’ to the education system?

Actually it’s more appropriately called the “Bellamy Salute” or “Roman Salute”.
How did it get memory-holed that Americans used to do this? Was it forgotten due to certain ‘changes’ to the education system?