Timetoast

Product
Product

Privacy & Sharing

Keep drafts private, then share, publish, or embed with confidence.

Dynamic Views

Move between horizontal, vertical, and grid views to suit the task.

Custom Fields & Grouping

Add custom fields, color-code events, and compare grouped lanes.

Collaboration

Invite teammates, assign roles, and avoid version confusion.

Date Handling

Handle chronology more accurately when standard date tools fall short.

Timeline Templates

Quick-start timeline projects with pre-built templates.
Solutions
Solutions

Roadmapping

Keep product and project roadmaps easier to review and explain.

Project Management

Align teams around one clear plan without heavy PM overhead.

History

Create history timelines that make sequence and context easier to see.

Education

Use timelines for lessons, projects, and classroom explanations.

Biographies

Highlight milestones, patterns, and context across a life story.

Legal Cases

Organize events, evidence, and deadlines in one timeline.
Resources
Resources

Help Center
Find answers and support for your questions.

The Timetoast Blog
Read the latest news and updates.

About
Learn more about who we are and what we do.

Learn
Explore definitions, explanations, and timeline comparisons.

Contact Us
Get in touch. Report bugs, suggest features, or ask questions.
Published Timelines

Search Published Timelines
Search through published timelines on Timetoast.

Timeline Categories
Browse timelines by category.

Popular timelines
Widely viewed and shared content.
Sign in
Pricing + Sign up

ziyadb's profile

Joined about almost 10 years ago.

ziyadb's timelines

Timeline: Major Contributions in Chemistry History

Major Contributions in Chemistry History 2 items

Product

Privacy & Sharing
Multiple Views
Custom Fields & Grouping
Collaboration
Date Handling
Timeline Templates

Solutions

Roadmapping
Project Management
History
Education
Biographies
Legal Cases

Resources

Help Center
Blog
About
Learn
Contact

Browse

Timeline Categories
Popular Timelines
Updated Timelines
Latest Timelines

Privacy
Terms
Cookies Policy

Copyright © 2007-2026 Timetoast Timelines, All rights reserved. Made with ❤️ in London.