What date should be entered in "Date Acquired" for my home purchased as my primary home in 12/99, converted to a rental property 10/10, then back tomy primary home 11/18?

[teriwetzel]

I purchased my home December 1999 as my primary residence. October 2010 I converted it to a rental. Then November 2018 I converted it back to my primary residence. On the Turbo Tax Premier "Disposition Information" screen within Wages and Income for this "rental home", I'm prompted to complete two dates: 

Date of Sale or Disposition - which I believe should be November 2018 when I converted it back to my primary residence.

Date Acquired -  this field was prepopulated by Turbo Tax with the purchase date of December 1999, but the help information provided about this screen seems to say this date should be when it became a rental. Which would be October 2010.

What dates should be in these fields? 

[JulieR]

The date acquired field should show the date your rental was placed in service.