Promises to unify and work together to rebuild a wide swath of the Los Angeles region after January’s fires have given way to a far messier reality.

Summer Olympics organizers say they are on track to reach about $2 billion in sponsorships by year’s end, moving closer to the $2.5 billion needed.

By the 1930s, Los Angeles had a vibrant public transportation network, with over 1,000 miles of electric streetcar routes, operated by two companies: Pacific Electric Railway, with its “Red Cars,” and Los Angeles Railway, with its “Yellow Cars.”