A direct result of landlords not maintaining their tenements during the early 1900s was that

A direct result of landlords not maintaining their tenements during the early 1900s was that people only lived in them for short periods. people were injured in unsafe living spaces. rooms were overcrowded despite regulations.

Explanation:

ask google there you might be able to find an answer for the question you're trying to ask

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.