In 1914 a chemist called Fritz Haber offered his knowledge to the German Army. He soon began experimenting with chlorine gas to be used in trench warfare.

XIII fighter is 2nd Lieutenant Frank Luke. He’s about to take down his first German observation balloon. The Germans have ...

GRAND CANYON NATIONAL PARK, Ariz. – A chlorine gas leak at Grand Canyon National Park’s main water supply has forced park officials to close all inner canyon corridor trails. Officials said ...

The closures are due to a chlorine gas leak at Roaring Springs. The closure impacts both day and overnight hikers. The public is being asked to avoid these trails for safety reasons. Park ...

Trails in Grand Canyon National Park were closed due to a chlorine gas leak. Chlorine is used as a disinfectant in the Roaring Springs area of the park. The trails have since reopened NORTH RIM ...

GRAND CANYON VILLAGE, Ariz. — All inner canyon trails at the Grand Canyon reopened after a chlorine gas leak at Roaring Springs, the national park said on Thursday afternoon. The chlorine gas ...

In All Quiet on the Western Front, Erich Maria Remarque reinvented a genre.

The National Park Service said on Wednesday evening that inner canyon corridor trails at the Grand Canyon were closed due to a chlorine gas leak at Roaring Springs. On Thursday, the leak was ...

A chlorine gas leak at Roaring Springs forced the closure of all inner canyon corridor trails at Grand Canyon National Park, officials posted Wednesday evening on X, formerly Twitter. Bright Angel ...

This topic appears in OCR, Edexcel, AQA, WJEC, CCEA GCSE and SQA. How the suffragette movement changed at the start of WW1. videoHow the suffragette movement changed at the start of WW1 Kate Adie ...

Praise poets honour the servicemen, more than a century after World War One Hundreds of South African servicemen, mostly black, who died during World War One have been honoured with a new memorial ...

A team of archaeologists has excavated the site of a World War One training camp in Bexhill. Cooden Camp was used as a base for troops sent to the front line during the Great War. Among those ...