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In page Jean Ziegler:

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In 1963, Jean Ziegler was elected at the municipal council of Geneva as a social democrat. From 1967 to 1983 and from 1987 to 1999, he held a seat at the Swiss National Council. While there, he was the president of the "Swiss-Third World" parliamentary group. He joined the commissions for foreign affairs, science and international trade.[citation needed]