Use stream of consciousness to answer the following. In 1977, William S. Doyle, Deputy Commissioner of the New York State Department of Commerce hired advertising agency Wells Rich Greene to develop a marketing campaign for New York State. Doyle also recruited Milton Glaser, a productive graphic designer to work on the campaign and create a design based on Wells Rich Greene's advertising campaign. Glaser's final sketch to accompany the agency's "I Love New York" slogan was conceived in a taxi. It comprised the letter I and a heart shape followed by NY, all on the same line. As the idea developed he decided to stack the I and heart shape on a line above the NY characters, later stating that he may have been a "subliminally" influenced by Robert Indiana's LOVE pop art image.

When was i love new york logo designed?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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To answer the question, consider the following: Glaser's final sketch to accompany the agency's "I Love New York" slogan was conceived in a taxi. Final answer: 1977.