for the U.S. Army during World War I,” Smithsonian reported in February. “The Smithsonian museum has conceded that a Black American invented the life-saving gas mask, not the Scottish ...

for the U.S. Army during World War I," Smithsonian reported in 2022. "The Smithsonian museum has conceded that a Black American invented the life-saving gas mask, not the Scottish physician [John ...

Ruck marches, never short on pain and misery, become even worse when you combine Arizona’s high temperatures with gas masks and full ... Police Command, U.S. Army Reserve, hosted a “Command ...

The new streamlined gas mask, which some troops tried on for the ... in hot climates where soldiers may be naked to the waist. Contact us at letters@time.com ...