Harrogate's development is owed to the discovery of its chalybeate and sulphur rich spring water from the 16th century. The first mineral spring was discovered in 1571 by William Slingsby who found that water from the Tewit Well in High Harrogate possessed similar properties to that from springs in the Belgian town of Spa, which gave its name to spa towns. The medicinal properties of the waters were publicised by Edmund Deane; his book, "Spadacrene Anglica, or the English Spa Fountain" was published in 1626.