1883 - The first electric light plant in Los Angeles was built in 1882 by C. L. Howland (Los Angeles Electric Company) on the corner of Alameda and Banning Streets.

1888 - Banning Street Electrical Plant now showing two smokestacks. It appears that the building as been enlarged from its original footprint as seen in the previous 1883 photo.

1907 - View looking north on Broadway near 5th Street at dusk or dawn. Beautiful 7-lamp streetlights are illuminating the nearly vacant street.

1905 - Looking west from 5th and Hill streets. Ornate 5-bulb streetlights appear as far as the eye can see. The trees of Pershing Square are visible on the left, and the State Normal School, on the present site of the L.A. Public Library, Central Branch shows prominently in the background.

1908 - Close-up view of the same corner as previous photo, in 1908. The ornate 5-bulb streetlight can be seen in greater detail.

https://en.m.wikipedia.org/wiki/List_of_social_fraternities_and_sororities

Social or general fraternities and sororities, in the North American fraternity system, are those that do not promote a particular profession (as professional fraternities are) or discipline (such as service fraternities and sororities). Instead, their primary purposes are often stated as the development of character, literary or leadership ability, or to serve a more simple social purpose. This list of social collegiate organizations; other types of social fraternal organizations can be found under List of general fraternities.

Some organizations in this list have a specific major listed as a traditional emphasis. These organizations are social organizations that cater to students in those majors. Other organizations listed have a traditional emphasis on a specific religion or ethnic background, such as Christian fraternities and sororities. Despite this emphasis, most organizations have non-discrimination membership policies.