No, people knew lead was poisonous even back near Roman days. Though just like how humans constantly do stupid things for some benefit, they kept using it as a sweetener for ages.
Also mercury in relation to, “as mad as a hatter”. It’s just mercury was very good for the job.
No, people knew lead was poisonous even back near Roman days. Though just like how humans constantly do stupid things for some benefit, they kept using it as a sweetener for ages.
Also mercury in relation to, “as mad as a hatter”. It’s just mercury was very good for the job.
To play devil’s advocate, we always knew lead was toxic, but we didn’t know the only healthy dose was 0