Spock | Picard
There has been a split in the timeline and there are some here from both timelines. There is a great deal of information both about yourself and your alternate self on the Internet and is likely a much clearer source of information than I will be. I know the basics, of course, but not the details.
We are still exploring, seeking out new civilizations... looking to discover.
There is much that is no longer classified due to the peculiar nation of our lives here. Although not everything is related on the screen as you might guess. I suspect this New York will be somewhat different from the 1930s, at least if the Holodeck is anything to go by. I have a favorite holodeck program that occurs around that time and so I have some familiarity with the earlier portion of the 20th century.