Depending on your definition, at least the start of Goddard's rocket in 1926 or the A-4 that reached space in 1942 come to mind.
One thought: any chance of showing launches as arrows -- ideally approximating the actual launch azimuth -- rather than circles? Would help dispel the myth that rockets go primarily upwards!
http://upload.wikimedia.org/wikipedia/commons/6/67/USAF_ICBM...
Korolev's premature death and his successor's lack of political savvy might have to do something with it.