What neutral sources I can find disagree. TIME magazine, 1964: Roe v. Wade happened in 1973. As quoted on Wikipedia, the Center for Disease Control says 850k legal. Assuming that humans are generally rational and will get legal rather than illegal abortions where possible, the number of illegal abortions is probably less than five percent of this number, or perhaps 43k, and that's being generous. Even adding this is still well under a million, and we haven't yet taken into account that the US population increased. According to the Census Bureau, it was under 200M in 1964, and is 300M right now. You will have to convince me that there were either less than 600k abortions in 1964, or that there were more than 1,5M in one of the last five or so years, or some combination of these, possibly including a huge morality shift.