The Malaspina Expedition (1789–1794) was a five-year maritime scientific exploration commanded by Alessandro Malaspina and José de Bustamante y Guerra. Although the expedition receives its name from Malaspina, he always insisted on giving Bustamante an equal share of command. Bustamante however acknowledged Malaspina as the "head of the expedition" since the beginning. The expedition was funded by the Spanish government and originally pursued strictly scientific goals, in the same fashion as the voyages of James Cook and Jean-François de Galaup, comte de La Pérouse. Some of the leading scientists at the time collected an impressive amount of scientific data that even surpassed what was collected during Cook's expedition, but due to Malaspina's involvement in a conspiracy to overthrow the government, he was jailed shortly upon return. Most of the expedition's reports and collections were put away unpublished, and did not see the light until the late 19th century. Background and preparation From September 1786 to May 1788 Malaspina made a commercial circumnavigation of the world on behalf of the Royal Philippines Company. During this voyage he was in command of the frigate Astrea. His route went via the Cape of Good Hope and, returning, Cape Horn. Astrea called at Concepcion in Chile in February 1787, whose military governor, the Irish-born Ambrose O'Higgins, had recommended six months before that Spain organize an expedition to the Pacific similar to those led by Lapérouse and Cook. O'Higgins had made this recommendation following the visit of the Lapérouse expedition to Concepcion in March 1786, and presumably discussed it with Malaspina while the Astrea was at Concepcion. Following the Astrea's return to Spain, Malaspina produced, in partnership with José de Bustamante, a proposal for an expedition along the lines set out in O'Higgins' memorandum. A short time later, on 14 October 1788, Malaspina was informed of the government's acceptance of his plan. José de Espinoza y Tello, one of the officers of the Malaspina expedition, subsequently confirmed the importance of the information sent by O'Higgins in stimulating the Government to initiate an extensive program of exploration in the Pacific. The prompt acceptance of Malaspina's proposal was also stimulated by news from St. Petersburg of preparations for a Russian expedition (the Mulovsky expedition) to the North Pacific under the command of Grigori I. Mulovsky that had as one of its objectives the claiming of territory on the North West Coast of America around Nootka Sound that