Why is "1980 Screen Actors Guild strike" trending?

Wikipedia Overview

The 1980 actors strike was a labor strike held in July–October 1980 by the Screen Actors Guild (SAG) and the American Federation of Television and Radio Artists (AFTRA), two labor unions representing actors in the American film industry. The strike was caused by a breakdown in labor contract negotiations between the two unions and representatives of film studios, television networks, and other independent producers. The primary point of contention regarded residuals from home media, such as videocassettes and pay television. Specifically, the union was seeking a form of profit sharing wherein they would receive a percentage of the revenue made from home media releases. Additionally, the unions wanted a 35 percent salary increase across the board for their members. By mid-July, the union and industry representatives were at an impasse, and the strike started on July 21. Several days later, the American Federation of Musicians also went on strike for similar reasons.