Timeline Event
A single event inside a timeline content payload.
Metadata
Field index
| Field | Type | Req. | Description |
|---|---|---|---|
| when | string | — | Event time, date, or sequence label. Use ISO-like values when possible, but human labels are allowed for quarters, eras, and relative milestones. |
| what | string | yes | Short event label. |
| description | string | — | Optional event detail. |
when
typestringrequirednodefault—
Event time, date, or sequence label. Use ISO-like values when possible, but human labels are allowed for quarters, eras, and relative milestones.
{
"when": "2026-01"
}what
typestringrequiredyesdefault—
Short event label.
{
"what": "Pilot"
}description
typestringrequirednodefault—
Optional event detail.
{
"description": "Launch with the first operations team."
}