| Measure | Value |
|---|
The years from 1770 to 1870 are squeezed into the first part of the line so the busy decades after 1870 have room. Dates marked "about" or given as a decade are approximate. Click a dot on the timeline, or pick an event from the list, to read about it.
Pick a topic. The left side shows the historical model in its own terms; the right side shows what current evidence says.
Problems are drawn at random from the events and ideas in this module. For predict then watch items, choose first; the picture then plays what really happened. For ordering items, the worked solution slides each card onto a timeline.
Your job
Drag a card onto a box, or tap a card and then tap the box's name. Cards are buttons, so Tab and Enter work too.
Fictional adults with generic names. Teaching examples about history and evidence, not medical advice.
Wrong picks are fine here. Each one tells you why.