Why do you think that the massacre in Tulsa, Oklahoma was largely forgotten, even by those living in the states?

The massacre in Tulsa was against the black community. Partly the reason the bombing was forgotten was because of racial things. The community in Tulsa was rundown and not cared for. So people turned their heads and didn't care.  Also because people often don't care about black community's.

21 balloons is the story of professor william sherman's travels.

in 1883, he set off from san francisco for a balloon ride over the pacific and was found a month later floating with 21 balloons in the atlantic ocean. this seemed an astounding feat and everyone wanted to know what had happened.    

professor sherman was loyal, however, and said he would tell his tale first to the western american explorers club in san francisco, of which he was a member. this built up suspense for several chapters before he began to tell of the wonders of his adventures and the amazing island of krakatoa, an island which had just been blown up by a volcano.  

the residents of krakatoa are all millionaires who live under a "gourmet government" of their own devising. we get to see all the incredible adventures that creative people with unlimited resources would create according to the author.