Section: Social Complexity

Subsection: Transport infrastructure

Bridge

bridges refers to bridges built and/or maintained by the polity (that is, code 'present' even if the polity did not build a bridge, but devotes resources to maintaining it). (See here)

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Variable	Definition
Polity	The Seshat Polity ID
Year(s)	The years for which we have the data. [negative = BCE]
Tag	[Evidenced, Disputed, Suspected, Inferred, Unknown]
Verified	A Seshat Expert has approved this piece of data.

Variable	Definition
bridge	The absence or presence of bridge for a polity.

Actual Data:

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#	Polity	Year(s)	Bridge	Description	Edit
141	(Hallstatt D)	Full Year Range of Hallstatt D is assumed. [-600, -475]	unknown	None
142	(La Tene A-B1)	Full Year Range of La Tene A-B1 is assumed. [-475, -325]	unknown	None
143	(Akan - Pre-Ashanti)	Full Year Range of Akan - Pre-Ashanti is assumed. [1501, 1701]	absent	None
144	(Ashanti Empire)	Full Year Range of Ashanti Empire is assumed. [1701, 1895]	absent	None
145	(Archaic Crete)	Full Year Range of Archaic Crete is assumed. [-710, -500]	present	None
146	(Classical Crete)	Full Year Range of Classical Crete is assumed. [-500, -323]	present	None
147	(Austria - Habsburg Dynasty I)	Full Year Range of Austria - Habsburg Dynasty I is assumed. [1454, 1648]	present	Bridges were present, built and maintained throughout the period. §REF§(Curtis 2013: 48) Curtis, Benjamin. 2013. The Habsburgs: The History of a Dynasty. London; New York: Bloomsbury. https://www.zotero.org/groups/1051264/seshat_databank/items/TRKUBP92§REF§
148	(Geometric Crete)	Full Year Range of Geometric Crete is assumed. [-1000, -710]	present	None
149	(Hellenistic Crete)	Full Year Range of Hellenistic Crete is assumed. [-323, -69]	present	None
150	(Norman England)	Full Year Range of Norman England is assumed. [1066, 1153]	present

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