Answer !
potatoes were not initially grown in europe; however, they became a staple part of the european diet by the end of the eighteenth century. which two factors were responsible for this change in diet?
the introduction of a new variety of seeds the growth of potatoes.
large quantities of potatoes were imported by europe as a result of the columbian exchange.
potatoes improved the european diet nutritionally.
farmers in europe refused to grow other crops, such as rice.
potatoes were exported to the americas in the seventeenth century.

The two factors were responsible for this change in the diet of Europeans are

1. The introduction of a new variety of seeds helped the growth of potatoes.

2. Large quantities of potatoes were imported by Europe as a result of the Columbian Exchange.

The European adoption of the potato initiated the template for modernized agriculture known as an Agro-industrial complex.

Not only the Columbian Exchange carried the potato beyond the Atlantic, but they also carried the world’s first intensive fertilizer: Peruvian guano.

The Columbian exchange was the extensive transfer of plants, culture, animals, technology, human populations and thoughts between the U.S and the Old World in the 15th and 16th centuries. Columbian exchange associated with European colonization and trade followed by Christopher Columbus's 1492 sea voyages.

The new agreement between the global population circled a large variety of produce and livestock. Merchants returned to Europe with potatoes, tomatoes, and maize, which became extremely important crops in Europe by the 18th century.

Due to these reasons Potatoes, became a staple part of the European diet by the end of the eighteenth century, however, was not initially grown in Europe.

is there a year set? the question is incomplete