Free Generation Timeline Builder

A generation timeline is a visual chart that maps your family members' lifespans across a horizontal time axis, showing how generations overlap and which historical events they lived through. Enter your ancestors' birth and death dates below to build yours.

Add a family member

Enter details to place them on the timeline.

Family members (5)

James Wilson

Great-Grandparent - 1890-1965

Mary Wilson

Grandparent - 1920-2005

Robert Wilson

Parent - 1950-present

Sarah Wilson

Self - 1982-present

Emma Wilson

Child - 2010-present

Timeline

Great-GrandparentGrandparentParentSelfChild
1880189019001910192019301940195019601970198019902000201020202030
First Flight
World War I
Great Depression
World War II
WWII Ends
Moon Landing
Berlin Wall Falls
Y2K / Millennium
COVID-19 Pandemic
James Wilson (1890-1965)
Mary Wilson (1920-2005)
Robert Wilson (1950-now)
Sarah Wilson (1982-now)
Emma Wilson (2010-now)

Generation spans

Great-Grandparent1890 - 1965 (75 years)
Grandparent1920 - 2005 (85 years)
Parent1950 - 2026 (76 years)
Self1982 - 2026 (44 years)
Child2010 - 2026 (16 years)

How to build a generation timeline

Follow these steps to create a visual map of your family's history across centuries.

  1. 1

    Add a family member

    Enter the person's name, birth year, and optionally their death year. Select which generation they belong to (grandparent, parent, self, child, etc.).

  2. 2

    Repeat for each ancestor or descendant

    Add as many family members as you like. The timeline automatically adjusts its range to fit all entered dates.

  3. 3

    View the visual timeline

    Each person appears as a colored bar spanning their lifetime. Bars are color-coded by generation so you can see family layers at a glance.

  4. 4

    Explore historical context

    Vertical markers show major historical events on the timeline, letting you see which events your ancestors lived through and which generations overlapped.

  5. 5

    Print or export

    Click the Print / Export button to open your browser's print dialog. Save as PDF or print a physical copy of your family generation timeline.

Ready to build a full family tree with branches and relationships? Explore the main Family Roots product.

Generation timeline FAQ

Common questions about family generation timelines, generation calculators, and ancestry timeline tools.

What is a family generation timeline?

A family generation timeline is a visual chart that maps the lifespans of multiple ancestors and descendants along a horizontal time axis. It shows when each person was born and died, how many years generations overlap, and which historical events they lived through. This helps genealogists understand how their family spans across centuries.

How do you calculate generations in genealogy?

In genealogy, a generation is typically measured as the time between a parent's birth and their child's birth, averaging about 25-30 years. To calculate the number of generations between two people, count the parent-child links connecting them. For example, you and your grandparent are separated by two generations.

How many generations back is 200 years?

Approximately 6 to 8 generations span 200 years, depending on the average age at which each generation had children. With an average generation length of 25 years, 200 years covers 8 generations. With 30-year intervals, it covers about 6-7 generations.

Why do generation timelines show historical events?

Historical events provide context that makes a family timeline more meaningful. Seeing that your great-grandmother lived through both World Wars, or that your grandfather was born during the Great Depression, brings family history to life and helps you understand the world your ancestors experienced.

Can I export or print my generation timeline?

Yes, this tool includes a print/export button that opens your browser's print dialog. You can print the timeline directly or save it as a PDF. The timeline is formatted for landscape printing to fit the horizontal layout.