| 1865 | Central Pacific Railroad Co. recruits Chinese workers for the transcontinental railroad. |
| 1867 | 50,000 Chinese reported living in California. |
| 1868 | U.S. and China sign Burlingame-Seward Treaty, affirming friendship between the two nations and guaranteeing the right of Chinese immigration, since inexpensive Chinese labor was popular among railroads and other employers. |
| 1869 | The First Transcontinental
Railroad in the U.S. is completed on May 10, 1869. |
| 1880 | As many people blamed the Chinese for taking away jobs and causing unemployment, the U.S. successfully amends the Burlingame Treaty, winning the right to limit or suspend Chinese immigration. |
| 1898 | U.S. annexes Hawaii on
August 12, 1898. The Philippines becomes a U.S. territory after the Spanish-American War. |
| 1903 | First group of Korean
immigrants enter Hawaii on January 13, 1903, to work as laborers on sugar plantations. Filipino students arrive in U.S invited to attend colleges under the Pensionado program, an effort to modernize and democratize the Philippines. |

Completing the last link in the First Transcontinental Railroad with a spike of gold on May 10, 1869, the Union Pacific No. 119 and Central Pacific No. 60 locomotives were drawn up face-to-face on Promontory Summit, Utah for the ceremony. Phot credit: Andrew J. Russell; public domain image; source: wikipedia.org