Without being too extravagant you can get by with 5000 to 10000 yen per day on lunch and dinner including transportation/subway/rail. That's about $50.00 to $100.00 in American dollars (minimizing taxi usage). Try to avoid the taxi's because that could cost a small fortune, especially in rush hour.
The popular referendum is a device which allows voters to approve or repeal an act of the Legislature. If the Legislature passes a law that voters do not approve of, they may gather signatures to demand a popular vote on the law.
Congress passed the Reconstruction Act of 1867, the ratification of the Fifteenth Amendment to the United States Constitution in 1870 providing the right to vote, and the Civil Rights Act of 1875 forbidding racial segregation in accommodations.