Science Fiction on page 4

The United States' Apollo 11 was the first crewed mission to land on the Moon, on 20 July 1969. It is history but not accepted as the very first manned landing on the moon. Rumors are rife that other countries tried and failed. That is speculation. Rumors were that men were lost in the efforts. No evidence has ever been found to support those ideas. But that doesn’t mean it didn’t happen. It means it was never reported. Twin planets circleing the sun theories abound. How would we ever know? The above is most likely fiction. This book is entirely fiction, isn’t it?