They're going to be able to use the Cyrus Star to predict the calendar. And they actually had their calendar, which was 7 days and 365 days a full year, which was only 6 hours off of the actual, you know, calculated solar calendar. So good for Egypt, it was really close. And they were actually very advanced in medicine. And of course they used some of the evil spirit kind of stuff too, but they also learned how to use very scientifically based medical procedures, including some very rudimentary surgery. I don't know if I'd want to have a surgeon open me up back then, but they did it, which is pretty incredible. And of course the other fields such as architecture, you can just imagine building the pyramids, they use columns in many of their homes.