The 9th Century includes all events that took place from January 1st of 801 to December 31st of 900.
Atom (Ray Palmer) arrives in the Middle East via the Time Pool where, dazed from the experience, he decides to take a nap in a nearby lamp. By twist of fate, the Atom ends up starting the myth of Aladdin's lamp, when a young boy named Hassan has his heirloom lamp stolen by Abdul the Thief. As "Al Atom", the atom helps the boy recover the lamp and helps the boy uncover a long lost treasure before leaving. As a token of gratitude, the young boy gives Atom a coin, which he brings back with him to the present.