The scaled timeline needs a wider screen.
It places every item on a true-to-scale axis in three side-by-side columns, which wants a landscape window about 1,000 pixels across.
Open the list view instead →
2,096 items · 40,000 BC to 2,020 · 4 of 2,096 shown, by interest
2 items are older than 100,000 years and are not shown: on a true-to-scale axis a single one of them would compress everything else into the last few pixels. Use list view to see them.