In the 18th century Germany, the story of candles on cakes can be followed back to Kinderfest, a birthday celebration for children. This culture also does the use of candles and cakes. German children were taken to an auditorium-like space. For the Ancient Greeks, placing candles on a cake was a unique way to pay praise to the Greek moon goddess, Artemis. They cooked round cakes to signify the moon. People may have thought that the smoke from the candles carried their wishes and prayers to gods who lived in the skies.
One way to get extra information that might help you determine the relative ages of these rocks is to examine any fossils contained in the layers. The time period that these fossils appear might be known, and this could help you begin to sort out which rock layers are older than others.
