Currency
Classical coin-backed monetary systems in which state or civic authority, standard weights, and marked media support portable exchange beyond direct barter.
Core metadata
- ID: currency
- Era: Classical
- First known date: -650 (century)
- Region: Lydia / western Anatolia and wider classical coin-currency networks
- Review status: source_checked
- Maturity: established
Prerequisites
- Barter (barter)
- Bronze Working (bronze_working)
- Mining (mining)
- Record Keeping (record_keeping)
- Writing (writing)
Dependents
- Border Customs Posts (border_customs_posts)
- Contract Law (contract_law)
- Democracy & Republicanism (democracy_republicanism)
- Department Stores & Mass Retail (department_stores_mass_retail)
- Harbor Customs Houses (harbor_customs_houses)
- Logistics & Supply Lines (logistics_supply_lines)
- Merchant Partnership Contracts (merchant_partnership_contracts)
- Postal Money Orders (postal_money_orders)
- Standardized Coinage (standardized_coinage)
- Theater Ticket Sales (theater_ticket_sales)
- Road Tolls and Maintenance Funding (toll_roads_and_bridges)
- Trade Guilds (Collegia) (trade_guilds_collegia)
Fields
Field lanes
- Finance & Markets: Money & Accounting
Node sources
- Lydia & the First Coins (American Numismatic Association Money Museum, 2026, museum) • Supports: node, maturity, edge
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 5
- Average edge confidence: 70%
- Prerequisite sources: 5
- expert_inference: 4
- weak_inference: 1
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Writing (writing) | historical_predecessor | 75% | expert_inference | Writing is an earlier historical predecessor or foundation, not a one-to-one engineering dependency. |
|
| Mining (mining) | commercial_or_scaling_dependency | 72% | expert_inference | Regular coin currency scaled with reliable supplies of precious or base metals, although early electrum could come from naturally occurring deposits. |
|
| Bronze Working (bronze_working) | enabling | 58% | weak_inference | Bronze-working capability belongs to broader metal-money traditions but is not a hard prerequisite for the earliest Lydian electrum coins. |
|
| Record Keeping (record_keeping) | historical_predecessor | 75% | expert_inference | Record Keeping is an earlier historical predecessor or foundation, not a one-to-one engineering dependency. |
|
| Barter (barter) | historical_predecessor | 70% | expert_inference | Coin currency historically replaces or complements barter as a more portable medium of exchange, but barter is not an engineering prerequisite. |
|
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