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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Metadata:

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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
151	(New Palace Crete)	Full Year Range of New Palace Crete is assumed. [-1700, -1450]	present	None
152	(Old Palace Crete)	Full Year Range of Old Palace Crete is assumed. [-1900, -1700]	unknown	None
153	(Postpalatial Crete)	Full Year Range of Postpalatial Crete is assumed. [-1300, -1200]	present	None
154	(Prepalatial Crete)	Full Year Range of Prepalatial Crete is assumed. [-3000, -1900]	unknown	None
155	(Hawaii I)	Full Year Range of Hawaii I is assumed. [1000, 1200]	unknown	None
156	(Hawaii II)	Full Year Range of Hawaii II is assumed. [1200, 1580]	absent	None
157	(Hawaii III)	Full Year Range of Hawaii III is assumed. [1580, 1778]	unknown	None
158	(Iban - Pre-Brooke)	Full Year Range of Iban - Pre-Brooke is assumed. [1650, 1841]	absent	None
159	(Iban - Brooke Raj and Colonial)	Full Year Range of Iban - Brooke Raj and Colonial is assumed. [1841, 1987]	absent	None
160	(Norman England)	Full Year Range of Norman England is assumed. [1066, 1153]	present

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