Food scientists announced today that jam as we know it, maybe older than the scientific community at first thought.
The earliest written record of jam was from Elizabethan times after Sir Walter Raleigh brought a couple of jars back on his ship "The Duck Billed Platypus" after he discovered America in 1492.
Now with improvements in carbon dating techniques, it is now believed that jam could have originated from as far back as 55BC at the time of the last major extinction of Dinosaurs. Clever people have said that jam may have been a factor in the dinosaurs' demise although this is very unlikely. They just couldn't handle it.
Historians have long believed jam to be an ancient and decisive weapon extensively used by the Hittite armies a long time ago: The hot jam was used to pour on their enemies who attempted to scale their fortifications before oil was invented.