Answer:
The Japanese don't have a president. Perhaps you are referring to the Prime Minister, in which case the first Japanese Prime Minister (in the modern sense, so excluding emperors) was Itō Hirobumi.
They maintained their own identities instead of "melting together" like described in the melting pot.
Longevity in life and a brighter future for technology
The Homestead Act of 1862 mainly affected c) the westward settlement of farmers. The Homestead Acts are defined as "several United States federal laws that gave an applicant ownership of land, typically called a "homestead", at little or no cost."