Historical fiction is a sub-genre that is set in the past and based on true events but fictional characters or different fates. The scene shows the American Expedition of Korea with two fictional main characters and soldiers that represent both American soldiers and Korean soldiers.
Fanstsy is sub genre thats magic and mythical creatures. This example above shows the knights slaying the dragon that the witch created and saving the princess.
Science Fiction based on something from the future. Like for example, an astronaut found a mob of aliens and robots on the moon.