Bantu speaking communities in the great lakes region of Africa develop iron forging techniques that enable them to produce carbon steel. (1 gen 100 anni a. C. – 1 gen 100 anni)
Descrizione:
https://pubmed.ncbi.nlm.nih.gov/17830304/Schmidt, P.; Avery, D.H. (1978). "Complex iron smelting and prehistoric culture in Tanzania". Science. 201 (4361): 1085–89. Bibcode:1978Sci...201.1085S. doi:10.1126/science.201.4361.1085. PMID 17830304. S2CID 37926350
Aggiunto al nastro di tempo:
Data:
1 gen 100 anni a. C.
1 gen 100 anni
~ 200 years