Original sentence: 1955 he joined Weleda Arlesheim as a pharmacist and developed their documentatoin centre.1980 was appointed vice-president of the swiss Society for History of Pharmacy.He gave numberous courses for physicians, pharmacists, chemists and Weleda staff
Edited sentence: 1955 he joined Weleda Arlesheim as a pharmacist and developed their documentation centre.1980 was appointed vice-president of the Swiss Society for History of Pharmacy.He gave numerous courses for physicians, pharmacists, chemists and Weleda staff