Next hour, American History tv exclusive, our cities tour goes to san jose. We traveled to cities across the u. S. To explore their literary and historic sites. Watch more of our visit at cspan. Org citiestour. And these are bone small ivory counting sticks from the 17th century. The most recent thing we have is the iphone. When the punch card gallery and you see a replica of a census machine. What is this . Well, in 1890, the bureau of the crens us finished the 1880 crens us and the constitution requires it to be taken every 10 years. The 1890 crens us wasnt going to be completed in time. Typically, the way the system worked, the crens us would go out in the field and ask the usual questions and bring the questions back to the office where they would be transcribed using this device, which converts the handwritten responses into machinereadable form. So using this little blank piece of cardboard at the top here, the crens us clerk punches holes in the card. So what they did is create