Matches in daily life mainly generate heat by friction, which turns them into open flames. It is a kindling tool that can be rubbed to make a fire. Matches are mainly made of combustible materials. At that time, the combustible substance was mainly phosphorus, but due to the toxicity of phosphorus itself, with the gradual improvement of people, phosphorus sulfide was used instead of yellow phosphorus to develop matches. According to the earliest competition history in China, it was during the war.
Because Qi was caught in the middle of the war, they were short of materials and had nothing to eat, especially no kindling. They can't cook because there is no kindling. At that time, a maid-in-waiting accidentally invented matches. This kind of match was widely used in life at that time. People used it as a kindling, but it was because the technology was not mature enough at that time. People don't understand the dangers of matches produced in the early days. The matches used at that time were mainly made of yellow phosphorus, which was not invented by people at that time, so Isabel was very rare.
Moreover, because the ignition point of phosphorus is relatively low, it is easy to spontaneously ignite, so if people put this match on their bodies, it may lead to spontaneous combustion, which is very dangerous. Second, because phosphorus is a toxic chemical substance, people who make matches may suffer from food poisoning or other poisoning. Later, through continuous development, they have made matches that are now non-toxic and harmless and will not spontaneously ignite.
The above story only represents my personal opinion. Please forgive me if there is any mistake.