so tappan really wanted to institute that here. and in the 1850s, astronomy was really fundamental to other sign enss. in part because the math is ferocious. so if you understand the math to operate a telescope hike this then you understand the math to move into engineering or chemistry, notes of different sciences. in the 1850s, universities that wanted to be contenders needed observatories. so this was the first step in a very public commitment to taking the university of michigan in the direction of becoming a research university. but it was also a very savvy, public relations move on tappan's part because it's saying loud and clear, we have a commitment to scientific research at the university of michigan. we're willing to build this building, put some of the best instruments at the time, the best scientific instruments at the disposal of faculty and s d students. and the image of this building was put on letterhead, catalogs. students were like oh, my god, i can't believe you're going to dartmouth, dartmouth doesn't have an ob