In 4 sentences, Explain how life in cities in the United States improved in the late 1800s and early 1900s. Be sure to describe innovations in public transportation and travel as well as how technology helped solve some of the problems of crowding.

Life in United States cities improved in the late 1800s and early 1900s with the introduction of efficient public transportation systems like electric streetcars and subways, which made it easier for people to travel around crowded urban areas. Technological advancements like the invention of elevators allowed for the construction of taller buildings, helping to alleviate issues of overcrowding by providing more living and working space in cities. Improved sanitation systems and public health initiatives helped to reduce the spread of diseases in urban areas, leading to healthier living conditions for city residents. The development of new communication technologies, such as telephones and telegraphs, also helped to connect people living in cities and improve overall quality of life.