1925		Radio broadcasts begin
	1943		First telephone collection
	1950		First telecommunications anniversary
	1952		Japan Telephone and Telegraph Corporation (NTT) Founded
	1953		NHK television broadcasts start
	1964		Comprehensive Communications Museum Opens in Otemachi, Tokyo
	1966		Nationwide microwave network for color television completed
	1984		INS model experiments start
	1985		Public corporation law abolished. The Nippon Telegraph and Telephone Public Corporation was broken up to form the Nippon Telegraph and Telephone Corporation.
	1988		Data Communications Business Spun Off as NTT Data Communications, Ltd.
	1989		Telephone "Exchanges" Become Branches and Offices
	1991		"NTT Global Environment Charter" Adopted
	1992		Contract for 1-Million Line Rural Telephone Expansion Project with TT&T of Thailand
	1994		Cooperative Venture with General Magic Announced
			Technical Cooperation with Microsoft Announced
			Partnership formed with Silicon Graphics of the USA

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museum@mod.hqs.ntt.jp