Many everyday objects and services that Americans use such as traffic lights, elevator doors that open immediately, color screens for computers and other items, were created by Black men and women.
From the three-light traffic signal, refrigerated trucks, automatic elevator doors, color monitors for desktop computers, to the shape of the modern iron
From the three-light traffic signal, refrigerated trucks, automatic elevator doors, color monitors for desktop computers, to the shape of the modern iron
From the three-light traffic signal, refrigerated trucks, automatic elevator doors, color monitors for desktop computers, to the shape of the modern iron