What is the time line of main events in 21 Balloons?
In 1875, after being shipwrecked on the island of Krakatoa, Mr. M discovers the diamond mines. He builds a raft, gets back to San Francisco, and handpicks twenty families to return to the island with him and establish a unique civilization.
On August 15, 1883, Professor William Sherman flies off from San Francisco in a hot-air balloon, hoping to be the first man to cross the Pacific Ocean using this mode of transportation.
On August 22, the Professor's balloon is damaged by a flock of seagulls, and he crash-lands on Krakatoa, which is located in the Pacific between Java and Sumatra. The Professor is greeted by Mr. F, and he is shown the diamond minds, is introduced to the society on the island, and told that now that he knows the secret of the island, he can never leave.
Three weeks after his arrival, a volcanic eruption destroys the island. The Professor flees with the island's citizens on a giant platform suspended by twenty giant balloons.
Most of the citizens jump off the platform over India, but the Professor cannot because he has no parachute. Mr. F, who has stayed behind with the Professor, abandons ship over Belgium. The Professor finally crash-lands the platform in the Atlantic Ocean.
On September 8, the Professor is rescued from the Atlantic by a passing ship and taken to New York. After a short period of recovery he travels to San Francisco on the Presidential train.
In October of 1883, the Professor gives a speech to the Western American Explorers' Club telling about his adventures.