{{0} m'badwo woyamba wa aaxiliaries
[1839 v
Mu 1839, Vulcananition idapezeka {{1}
Mu 1844, kuvortun Sulfate yoyambira kutsogolera Carbonate idapezeka {{1}
Mu 1846, kupezeka kwa othandizira owombera, kupezeka kwa sulfure chloride kuzizira njira {{1}
Mu 1904, adapezeka kuti kaboni wakuda amatha kugwiritsidwa ntchito mu mphira {{1}
{{0} m'badwo wachitatu wa aaxilialia
[1980 ~ Ponena] mikhalidwe yayikulu yowonjezera zowonjezera mu gawo ili ndi kutetezedwa ndi chilengedwe ndi kugwiritsidwa ntchito {{{{{{{{{{{}}
Mu 1980 ~ 1981, woloza NS adapangidwa {{}}
Mu 1985, chilengedwe cholosera cha chilengedwe mtt adayambitsidwa {{1}
Kuyambira 1991, kuteteza kwachilengedwe osakhala olimbikitsa, sulfonamides, zimbanda, zimbanda, TBZCC, ASTOS, ASTOS, ASTOS, ASTOSTD bwino {{4}