The first two civic-history tools are open.
The Timeline Engine and Presidential Alignment Grid are available as working prototypes while their evidence coverage and classifications continue through review.
What changed
The Timeline Engine and Presidential Alignment Grid are available as working prototypes while their evidence coverage and classifications continue through review.
Why it matters
Visitors can understand the project’s current state before entering the deeper system. The update also creates a durable record of what changed instead of silently replacing earlier work.
What comes next
The file will continue to collect corrections, substantive releases, new material, and changes that affect how the project should be understood or used.
Return to UnderstandingAmerica.Today →