It's not so much of a question of when, but rather how. Since English isn't, and didn't originate from, a Romanic language like Spanish, French, Italian, Portugese or Romanian, there was no specific point in time where Italy heavily influenced the shaping of the English language.
English has been influenced by Italy in certain subject areas such as music; for example words like, piano, soprano, and tenor. Things that are culturally Italian in origin like Pizza, balcony, or fascism have also made their way into the English language.
how good punctuation can influence the english language grammatical structure
as English influences on society
english
Most of them, France, Italy, Germany
The English language is a Germanic base with vocabulary from Latin>French and has little influence from Gaelic in the vocabulary.
Florin
The Celts influenced the English language through the introduction of Celtic words into Old English, the language spoken in England from the 5th to the 11th centuries. These Celtic words contributed to the development of the English language and can still be found in modern English vocabulary.
The influence of Old English and the migration of Germanic tribes like the Angles, Saxons, and Jutes to England around the 5th century brought Germanic language roots into English. This influence can be seen in vocabulary, grammar, and pronunciation patterns that persist in modern English.
Coinage, or borrowing if it has come from another language.
Shakespeare invented nearly 1,700 common English words.
A. A. Daryush has written: 'Persian words in English' -- subject(s): English language, Foreign words and phrases, Influence on English, Persian, Persian language
Ragazzo comes from the Italian language that is spoken in Italy. When translated into the English language, the word means 'boy'.