 In the 1800s, rammed earth was popularized in the United States by the book Rural Economy by S. W. Johnson.
<meaning-changed>  In the 1800s, rammed earth was popularized in the United States by the book Rural Economy by S. W. Johnson.
United States and Canada In the 1800s, rammed earth was popularized in the United States by the book Rural Economy by S. W. Johnson.