Final answer:
The market-place crowds gather to witness a range of events, from significant historical moments like the March on Washington or public entertainments to everyday social gatherings and communal activities.
Step-by-step explanation:
The crowds of people gathered in the marketplace have convened for a variety of spectacles. They may be witnessing historic public events, such as the March on Washington for Jobs and Freedom, where people gathered in anticipation of an influential moment, hoping to listen to speakers and be a part of significant societal change. In other contexts, crowds gather to enjoy entertainment, such as theater performances, or to be spectators at events where exceptional skills are showcased, like marksmanship by Patrolman Lazarus. Crowds also form in everyday life for social interactions, such as morning marketing seen among the women on the fashionable avenue or the communal engagement during nightly amusement times in a bustling street.