In the early 20th century, as modern transportation and communication systems developed, Bermuda's tourism industry began to develop and thrive. The island became a popular destination for a broader spectrum of wealthy US, Canadian, and British tourists. In addition, the tariff enacted by the United States against its trading partners in 1930 cut off Bermuda's once-thriving agricultural export trade—primarily fresh vegetables to the US—spurring the island to put more effort into developing the tourism industry,