canna (unit)

{{Short description|Ancient Italian unit of length}}

File:Tabella conversione metrica 1860 MG 7771.jpg

Canna (pl. canne; proper meaning in Italian: Cane) was an ancient Italian unit of length, which differed from place to place.

• Capua: 2.1768707 m (9th – 15th centuries)*{{cite journal

| last = De Rosa

| first = Vincenzo

| date = 1977

| title = Tavole di ragguaglio delle misure napoletane comuni e delle consuetudinarie capuane con il sistema metrico decimale

| url =

| journal = Quaderni della Gazzetta di Gaeta

| publisher = Di Bernardo

| location = Cassino

| language = Italian

| volume =

| issue = 14

| pages =

| bibcode =

| doi =

| access-date=

| isbn=

}}

• Republic of Genoa: 2.49095 m
• Kingdom of Naples:
• canna: 2.1163952 m (edict of 6 April 1480)
• canna: 2.6455026 m (law of 6 April 1840)
• field surveying canna: 6.998684 m² (law of 6 April 1840)
• Romagna: 1.9928 m
• Sicily: 2.062 m
• Tuscany
• field surveying canna, a.k.a. 5 "braccia" long "pertica": 2.9183 m
• canna (fabric): 0.58366 m
• Rome
• canna (architecture): 2.234 m
• commercial canna: 1.992 m
• Teramo: 3.17 m
• Malta: 2.08 m (2 yd, 10 in){{cite journal|title=The Water Supply of the Maltese Islands|journal=Archivum Melitense|date=1922|volume=VII|issue=1|pages=6|url=http://www.melitensiawth.com/incoming/Index/Archivum%20Melitense/AM.07(1922-1928)/AM.7(1922)1/01.pdf|publisher=Malta Historical and Scientific Society|archiveurl=https://web.archive.org/web/20160304110006/http://www.melitensiawth.com/incoming/Index/Archivum%20Melitense/AM.07%281922-1928%29/AM.7%281922%291/01.pdf|archivedate=4 March 2016|quote=One Maltese canna is practically, equal,{{sic}} to 2 yards 10 inches.|url-status=dead}}