Event timeline compiler

Event Timeline Compiler

What This Skill Does

Compiles key events into a structured, scannable timeline — formatted as a table or numbered list — designed for use in graphic production, digital interactives, sidebar fact boxes, and editorial planning documents.

When To Use This Skill

• You need a timeline formatted for a designer or web developer to turn into a visual element
• An editor has asked for a sidebar chronology to accompany a feature or investigation
• You are building an editorial planning document and need a compact reference of key dates
• You want a quick-scan version of events (not narrative prose) to share in a pitch or briefing

What You Need To Provide

Required: The topic or event sequence to compile, and the time period to cover.

Optional: Preferred output format (table, numbered list, or both); maximum number of entries (useful if you need it to fit a fixed layout); whether to include a brief annotation on each entry or just the bare date and event; the publication context (print sidebar, web interactive, broadcast rundown, pitch document).

How the Assistant Approaches This

1. Identifies the key events that define the arc of the story — trigger, escalation, turning points, and current status — prioritising entries that are independently significant over entries that are merely part of the background.
2. Assigns each entry the most specific date available (day/month/year where possible; month/year where exact date is unknown; year only as a last resort) and flags any approximate dates.
3. Writes each entry as a single, precise sentence — no more than 20 words — that states what happened and, if space permits, why it matters.
4. Formats the output as requested: a markdown table for digital/design use, a numbered list for documents, or both if no preference is given.

Output Format

Table format: Three columns — Date | Event | Significance (one word or short phrase). Dates in the first column, left-aligned. Maximum 25 entries unless more are requested.

List format: Numbered entries, each on a single line: **Month Year** — Event description.

Both formats use plain, neutral language. No bullet-point sub-entries. No paragraph prose. Output should be copy-paste ready for a designer's brief or an editorial doc.

Quality Criteria

• Every entry has a date — day/month/year, month/year, or year, with approximate dates flagged
• Each entry is one sentence, 20 words or fewer
• The most significant events are included; minor detail entries are omitted
• No two entries say essentially the same thing in different words
• Formatting is consistent throughout — no mixed styles within the same output
• The timeline has a clear start and end point, not an open-ended trailing list

Example

Input

Topic: A national housing affordability crisis and subsequent government policy response. Period: 2018–2024. Format: Table, for a web interactive. Maximum 12 entries. Include a one-phrase significance note per entry.

Output

Date	Event	Significance
Q1 2018	National median house price exceeds ten times median household income for the first time on record.	Crisis benchmark reached
June 2019	Parliamentary housing committee publishes inquiry report; recommends 14 policy reforms including zoning liberalisation.	Reform agenda set
March 2020	Pandemic lockdowns trigger short-term rent falls in major cities; government declares moratorium on evictions.	Temporary relief
November 2020	Mortgage rates hit historic low of 0.9%; demand surges; prices recover and accelerate.	Crisis deepens
August 2021	National homelessness register shows 22% year-on-year increase; advocacy groups call for emergency housing fund.	Social cost visible
February 2022	Central bank signals imminent rate rises; property industry warns of market correction.	Turning point signals
June 2022	Interest rates begin rising; first-home buyer mortgage approvals fall 34% over six months.	Demand squeeze begins
January 2023	Government announces National Housing Compact: target of 1.2 million new homes by 2029.	Policy response launched
May 2023	Senate passes amended Housing Fund legislation after three-month impasse; $10 billion committed.	Funding secured
October 2023	First Housing Compact progress report finds 38,000 homes completed against an annual target of 240,000.	Implementation lag exposed
March 2024	Independent review of zoning rules finds 60% of urban land still restricted to single-dwelling development.	Structural barrier confirmed
June 2024 (approx.)	Government announces emergency planning powers to override local zoning in designated supply zones.	Policy escalation

Dates marked "approx." are based on available reporting and should be verified before publication.

Known Limitations

• This skill produces a structured reference tool, not a publication-ready narrative. A writer will still need to interpret the timeline for readers rather than reproducing it verbatim in a text piece.
• The assistant cannot guarantee completeness for fast-moving stories or events that occurred close to its training cutoff. Always verify the final entry against current sources.
• For topics with significant regional or language variation (policy enacted differently in different jurisdictions, events covered primarily in non-English press), the timeline may reflect English-language coverage more than the full picture.
• The 20-word entry limit is a discipline, not a hard technical constraint — if a critical event cannot be accurately summarised in 20 words, ask the assistant to expand that specific entry.

Related Skills

• event-chronology-builder
• investigation-timeline-builder