The Maastrichtian stage occurred 70 to 65 million years ago.

Not everyone feels this stage of labour, though it does always occur.

The second stage occurs when the system is started up.

A significant stage of his development occurred in 1923-24, when he was doing military service.

The final stage of the planning process occurred in the individual producing units.

The acute stage occurs in the days or weeks after a rape.

The third stage occurs when the high barrier starts to lower.

This stage occurs when response to a stressor has gone on too long.

Also, between Stages 8 and 9 the riders had a rest day where no stage occurred.

What was the change, and when had the final stage occurred?