It was used as a model by several other states in the 1850s.

I am using it as a model for the others.

"We hope this will be used as a model in other states."

"This could be used as a model across the country."

"Other organizations have come to us and asked if they could use it as a model."

The organization would be used as a model for many European countries.

"We had nothing out there to use as a model then."

The film has also been used as a model for the perfect love story in the years that followed.

Some other countries even used our method as their model.

If successful, this election could be used as a model.