{
  "slug": "why-visiting-cards-became-business-tools",
  "version": 1,
  "summary": "Visiting cards moved from aristocratic ritual to business tool as commerce required rapid, legible introductions.",
  "mechanism": "social-ritual-to-commercial-tool",
  "layout": "timeline",
  "nodes": [
    {
      "id": "n1",
      "type": "card",
      "label": "Visiting Card",
      "x": 189,
      "y": 40,
      "w": 160,
      "h": 160,
      "detail": "social etiquette"
    },
    {
      "id": "n2",
      "type": "card",
      "label": "Trade Card",
      "x": 159,
      "y": 240,
      "w": 80,
      "h": 80,
      "detail": "name + trade"
    },
    {
      "id": "n3",
      "type": "card",
      "label": "Business Card",
      "x": 267,
      "y": 240,
      "w": 80,
      "h": 80,
      "detail": "contact details"
    },
    {
      "id": "n4",
      "type": "folder",
      "label": "Rolodex / File",
      "x": 375,
      "y": 240,
      "w": 80,
      "h": 80
    }
  ],
  "relationships": [
    {
      "from": "n1",
      "to": "n2",
      "label": "evolved into"
    },
    {
      "from": "n2",
      "to": "n3",
      "label": "standardised as"
    },
    {
      "from": "n3",
      "to": "n4",
      "label": "collected in"
    }
  ],
  "animation": {
    "style": "assemble",
    "duration": 700,
    "stagger": 60
  },
  "fig": "FIG. / THE CARD THAT CARRIED A PROFESSION",
  "presentation": {
    "style": "vignette",
    "hero": "n1",
    "support": [
      "n4"
    ],
    "icon": "business-card",
    "label": "Business card",
    "tilt": -5
  },
  "illustration": {
    "concept": "Four figures exchanging cards around gathering table; cards slide in both directions; collected cards stored in holder at upper left for use after the event ends",
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