Nexus Historia – Interactive Alternate History

Change one moment. Follow the consequences.

Nexus Historia helps history enthusiasts, teachers and learners explore alternate history through branching timelines, illustrated stories and historical maps. Start with a real event, choose one different decision, and examine what might follow. Counterfactual outcomes are creative interpretations, not established historical facts.

Try a free historical what-if example

Browse public creations

Explore before you create

Read a public scenario, follow a topic reading path or begin The Human Story, a free narrated journey through nine chapters of human history. Public reading and the starter preview do not need an account or use credits.

The Human Story

Alternate-history reading paths

Historical map

Create, keep and share

New accounts receive 15 free credits with no card required. Creating a scenario, generating images and other AI features have different credit costs, shown before you start. Save your work to return to it later and choose whether to share it publicly.

How credits and accounts work

Bring evidence into the classroom

Use a common historical starting point to compare choices and consequences. Guided Classroom Timelines support historical record, historical inquiry and counterfactual modes, with teacher-controlled branches and source links. Managed classroom features require institution education access.

Teaching resources and classroom access