Coleman is establishing the context, identifying the subject, and establishing the tone and the reader relationship. coleman is working on the of his

introduction; report

Explanation:

A report refers to a written description of something that one has observed, heard, done or investigated. Before writing the introduction of the report, it is necessary to identify the topic, the writer's general attitude toward the subject, who will read the report, and the register required according to the audience.

major league baseball

explanation:

jack roosevelt robinson broke the color barrier in major league baseball.as he was the first african american to play in the major leagues, jackie robinson became the target of racial abuse. jackie robinson is referring to the historic event, harlem riot.