Anglo-Saxons liked to gather in the lord's great hall, to eat and drink, and to listen to songs and stories. They loved tales about brave warriors and their adventures. A favourite story told how Beowulf, a heroic prince, kills the fierce man-eating monster Grendel, and Grendel's equally horrid mother. The story of Beowulf was first written down in the 8th-9th centuries, but long before that the story was told around the fire. The storyteller played music to accompany the songs and poems, on a small harp or on another stringed instrument called a lyre
A example would be reading your friends diary. Or looking at the Mona Lisa panting online.
Now if your reading your own diary then it's primary.
If your looking at the real Mona Lisa in the musam then it's a primary.
Answer:
Steam power explored steamboats invented
