05/29/2026
In the early 1900s, many U.S. border crossings looked dramatically different than they do today.
While some major ports of entry already had more formal inspection systems, others consisted of little more than a small booth, a gate, or a roadside checkpoint, often with minimal infrastructure and far fewer documentation requirements than modern travelers encounter today.
As automobile travel became more popular, especially during the 1920s and 1930s, cross-border day trips and tourism increased dramatically. During Prohibition specifically, many Americans traveled across the U.S.-Mexico border to visit restaurants, bars, casinos, and entertainment venues where alcohol remained legal.
Border crossings were generally far less standardized than the highly structured ports of entry we recognize today, which now involve extensive inspection systems, advanced security technology, formal documentation review, and significantly higher travel volume.
Over time, evolving immigration laws, growing international travel, changing security concerns, and increased trade transformed border crossings into the far more complex systems used today.
The history of border crossings offers an interesting glimpse into how immigration, travel, and international movement have continued evolving over generations.