Stacked bar graph question

The first part is simple - you can use the implicit measures

For the second part ( the chart ) you need a couple of things - for a proper implementation  you need a calendar table for the X axis, and then a measure for the mapping.  Or you can cheat and create a calculated table that materializes the prior result. This can be done by "borrowing"  the DAX code from the visual

and cleaning it up as

Table2 = SUMMARIZECOLUMNS(
			'Table'[PIN],
			'Table'[animal_state],
			"MinConfirmed_Date", CALCULATE(MIN('Table'[Confirmed Date]))
		)

Then you can render your column chart.

or in categorical axis

see attached