After having enrolled in the Navy where he was able to study electronics, he delved deeper into the sector of radar and audio-visual techniques. Following a journey into Asia with his geologist brother, he moved to the city of Genoa during the sixties and there he started to attend the Federico Lunardi American Museum. Here, his passion for studies into ancient civilizations was born, an interest which he was to keep throughout all of the ensuing years. The start of a highly productive scientific partnership came about after his meeting up with Giuseppe Orefici, an archaeologist from the city of Brescia who was at that time involved in an excavation expedition in Cahuachi. This was then to develop into work in this particular field in South America and then as a consequence into the analysis of botanical remains found in excavations.
Studies
Piacenza dedicated approximately 25 years of his life to numerous scientific projects including conferences, dissertations, the writing of a plant life book, scientific research as an archaebotanist studying vegetation remains found in tombs, offerings made to the deceased and ancient foodstuffs. Also, he has studied the development of agriculture and its changes over the course of time, laying an emphasis on the relationship between present-day flora and the archaeological one. He made special studies into the analysis of the eating habits of ancient pre-Incaic and pre-Columbian people. One of these research projects was carried out on Easter Island and concerned the analysis of vegetable fibre that was supposed to have played a part in the movement of the impressive Moai statues. Following his studies into the Chiribaya ethnic group was went by the name of "Investigador asociado centro Mallqui" , Ilo Peru". His lessons given at the University of Lima earned him the name of "the Visiting Professor of the Scientific University of Sur- Lima, Peru". His most recent work has been his contribution to the latest book on the Nasca desert, entitled "Nasca, The Desert and the Gods of Cahuachi", Graphediciones Edition. In the March 2010 a conference was held in Warsaw with the patronage of Unesco, where a reading performance from piece of research produced in collaboration with doctor Elvina Pieri was held in commemoration to this work.
Projects (participation)
Nasca Project
Research into offerings and the setting up of the first large size Botanical showcase in the Nasca Museum.
Contisuyo Project south coast of Peru along the Osmore river.
Examination of numerous tombs and funeral decorations of the ethnic group known as the Chiribaya. Creation of botanical showcase at the museum of Algarrobal.
Rapa Nui Project- Easter Island
Ligabue Research and Study Centre, Venice, in collaboration with the University of Chile, the Sebastiano Englert Museum and the Research and Study Centre of Pre-Columbian Archaeology. Doctor Orefici organised three consecutive expeditions to Rapa Nui in which Luigi Piacenza took part in two.
La Venta archaeological project - Director Doctor Orefici- speleological team "La Venta", archaeologist Professor Thomas Lee.
Exploration into the caves of the deep canyon of the Laventa River approximately 80 km to the west of Tuxtla Gutierrez Chapas Mexico. Special research into the botanical remains of the Lazo "cueva"
Works
"La Quinoa nel Mondo Andino", in " Archeologia e Società nell’America Precolombiana", 143-152, 15–17 November 1985, Biella, Italy.
"I resti botanici del centro cerimoniale di Cahuachi", Archaeology, Science and Society in Pre-Columbian America, International Conference Event, 41-51, Pre-Columbian Archaeological Italian Studies and Research Centre, Brescia 1998
"American Plants" in The Rediscovery of America, Marietti Genova editing house 1989
"Pseudocereali andini" in: 1492-1992 - Animali e piante dalle Americhe all'Europa, editing house Sagep - Genoa 1991
"La vegetazione dell'Isola di Pasqua e le sue modifiche nel tempo", in "Rapa-Nui" by Giancarlo Ligabue and Giuseppe Orefici, editing house Erizzo - Venice 1994
"Evidenze archeologiche di alcuni prodotti agricoli del Nuovo Mondo introdotti in Europa", in American Plants in the Scrivia Valley – Extract from events of Ligurian Academy of Science and Letters, 155-162 Series V, LI - Genoa 1994
"La produzione delle fibre vegetali nell'Isola di Pasqua", in La Terra dei Moai, editing house Erizzo - Venice 1995
"Los restos botànicos de la Cueva del Lazo, Ocozocoautla - Chiapas", in Investigaciòn, Revista ICACH 1,5 :25-38 ED. UNICACH Tuxtla Gutièrrez - Mexico 2000
"I resti botanici del sito archeologico di Cahuachi ", in Informatore Botanico Italiano, 33, 51-55, Società Botanica Italiana, Florence 2001
"Analisi delle proteine di riserva estratte da semi antichi peruviani", in Informatore Botanico Italiano, 33 56-59, Italian Botanical Society, M. Durante, L. Piacenza, P. Bruschi and R. Bernardi, Florence 2001
"Evidencias Botànicas en Asentamientos Nasca", in Boletìn del Museo de Arqueologìa y Antropologìa, vol. 5, n.1: 3-13, Universidad Nacional Mayor de San Marcos, Lima - Peru 2002
"Las Ofrendas de vegetales en el centro ceremonial de Cahuachi", in Il Sacro e il paesaggio nell'America Indigena, Atti del Colloquio Internazionale, A CURA DI: Domenici, D. Orsini, C. Venturoli, S.I, 14:309-317, CLUEB Bologna 2003
"Las plantas en las ofrendas funeraria Chiribaya", in Congreso de Americanistas en Perugia - May 2003
"Tradiciones gastronòmicas en diferentes Culturas precolombinas del sur peruano", Quaderni di Thule. Italian Journal of American Studies, IV, Argo Editing House, Lecce, pp. 47–52 - 2004
"Túmulos, ideología y paisaje de la fase alto Ramírez del Valle de Azapa" Revista Chungará version On-line Chungará v.36 supl.espec. t1 Arica sep. 2004 - Volumen Especial, 2004. Páginas 261-272 Chungara, Revista de Antropología Chilena
"Las plantas en las ofrendas funeraria Chiribaya", Quaderni di Thule. Italian Journal of American Studies, III-1, 237-244, Argo Editing House - 2005
"Flores y floristas en la sociedad Azteca", in Quaderni di Thule, International Conference of American Studies, Events of XXVII - Argo Editing House, Perugia 2005
"Flores y floristas en la sociedad Azteca", in Institute for Latin American Studies, R.A.S. Moscow M-35, Published in the magazine "Latinskaya Amerika", 69-76, Mosca 2006
"La vegetazione antica e l'attuale situazione floristica dell'Isola di Pasqua", in the Italian Botanical Informer, 39 suppl. 1,L. Piacenza, A. Ranfa e M.R. Cagiotti - 2007
"NASCA. El desierto de los dioses de Cahuachi" Author : Orefici Giuseppe Editorial : Hardcover, 260 Pages, Graph Ediciones 2010
Participation works
LA CUCINA PREINCAICA NELL'ARCHEOLOGIA, by Luigi Piacenza