You probably should look at more than just the start date for that act.

> Exclusion was repealed by the Magnuson Act on December 17, 1943, which allowed 105 Chinese to enter per year. Chinese immigration later increased [to 2000/year from the "Asiatic barred zone"] with the passage of the Immigration and Nationality Act of 1952, which abolished direct racial barriers, and later by the Immigration and Nationality Act of 1965, which abolished the National Origins Formula.

Fair enough. That's still over half a century ago.

Everyone involved in setting these barriers are dead.

Some of the technical debt in my codebase at work was put there by programmers who have long since left the company, too.

It still has significant impact.