Which major US city had the largest immigration population in 1850?

When something is summarized or important information is given briefly you can say it has been  synthesized.

Explanation:

A summary is an abbreviated, concise and faithful exposition about the most important points of a text or document. As such, it can be done orally or in writing, and must be objective, clear and consistent.

The summary, in this sense, is a synthesis technique by means of which we take a text to its most essential expression, pointing out the most important ideas and the most relevant aspects of the subject, without the mediation of interpretations or critical positions. Its main objective is to make it easier for the reader to understand a text.