Timeline diagrams let you visualize event chronology: project history, release roadmaps, and quarterly plans. They are a more visual alternative to text-based lists of dates and events.
Basic Syntax
timeline
title FlowEra History
2022 : Project idea
: MVP prototype
2023 : Closed beta
: First users
: Series A
2024 : Open beta
: v2.0 — Knowledge Base
: v2.5 — Video calls
2025 : Public launch
: Enterprise edition

Sections
Use section to group periods:
timeline
title Product Evolution
section Early Stage
2022 : Prototype
: Team of 2
2023 : MVP
: Product-market fit
section Growth
2024 : Open beta
: 1000+ users
: Team expansion
section Scale
2025 : Enterprise
: API integrations
: Mobile apps
Example: Release History
timeline
title FlowEra Release History
section v1.x
v1.0 : Basic kanban
: Simple tasks
v1.1 : Custom fields
: Filters
v1.2 : Iterations
: Burndown charts
section v2.x
v2.0 : Knowledge base
: Mermaid blocks
: Dark theme
v2.1 : Gantt charts
: Portfolio view
v2.2 : Video calls
: Chat
: Offline mode
section v3.x (planned)
v3.0 : AI assistant
: Smart analytics
v3.1 : Mobile apps
: Public API

Tips
- Time points can be any strings: dates, quarters, versions, months
- Keep events brief — up to 4-5 words per event, otherwise the diagram gets cluttered
- Sections help group periods by theme (phases, versions, quarters)
- Alternative — for detailed planning with dependencies, use Gantt charts