Project 4.1
In 1994, a 1953 "Castle Bravo" program prospectus was found which included reference to Project 4.1 apparently written before the "Bravo" shot had occurred. The U.S. government responded that someone had gone back into the project list after the "Bravo" test to insert Project 4.1; thus, according to the U.S. government, the acts were not premeditated. All other U.S. documents point to Project 4.1 having been established after the "Bravo" test—most sources point to its having been organized on March 7, 1954. The final Project 4.1 report began in its preface with the statement that "Operation CASTLE did not include a biomedical program" (it mentions this in discussing the ad hoc nature by which the project personnel were assembled). All official and mainstream historical accounts of the "Bravo" test indicate that its high level of fallout was a result of a miscalculation in relation to its design and was not deliberate (see the Castle Bravo article for more information on the alleged accident).
Castello Brown
The castle's site is well suited for harbour defence, and appears to have been so used since the 15th century. According to the Record Office of Genoa, cannon batteries were constructed on the site in the early 16th century, and military engineer drew up plans for a full fortress circa 1554. The resultant castello was completed by 1557, and, in 1575, was instrumental in turning back an attack on the town by Giò Andrea Doria. The structure was enlarged from 1622 to 1624, and survived in this form for a century and a half. The little tower was destroyed in 1798 by an English attack during Napoleon's Ligurian Republic. The castello was abandoned after the Congress of Vienna in 1815.