| 1946 | Nov. | PHP Institute founded. |
| 1947 | Feb. | PHP Friendship Clubs Association established. |
| Apr. | First issue of PHP magazine published. |
| 1952 | Sep. | Tourism Nation Plan proposed. |
| 1961 | Aug. | PHP activities started at Shinshin-an. |
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| 1967 | Nov. | PHP Head Office building completed in front of Kyoto Station. |
| 1968 | May | The Path(Michio-hiraku) by founder published. |
| Dec. | PHP magazine sold over one million copies. |
| 1970 | Sep. | First issue of PHP magazine (English international edition) published. |
| 1972 | Aug. | Thoughts on Man published. |
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| 1976 | Jun. | Children's book publishing started. |
| 1977 | Jan. | A Vision for Japan in the 21st Century (Watashi-no-yume, Nihon-no-Yume) published. |
| May | PHP Seminars initiated. |
| Nov. | The 30th Anniversary celebrated. |
| Dec. | Voice magazine inaugurated. |
| 1979 | Nov. | PHP International(Singapore) Pte.. Ltd. founded. |
| 1980 | Mar. | First issue of PHP(English Asia-Pacific edition) inaugurated. |
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| Oct. | Audio Visual training materials inaugurated. |
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| 1981 | Apr. | PHP Overseas Seminar launched. |
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| 1982 | Nov. | PHP Symposium has its first conference. |
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| 1983 | May | The Kyoto Colloquium on Global Change founded. |
| 1984 | Apr. | Seven Proposals for Educational Reform announced. |
| Oct. | First issue magazine of The 21 inaugurated. |
| 1985 | Jan. | PHP magazine (English Asia Pacific edition) renamed PHP Intersect. |
| Mar. | A children's book Obaketo Kodomono Ohsama awarded the Elba Prize at the Bologna Children's Book Fair. |
| 1986 | Apr. | PHP Parenting inaugurated. |
| 1987 | May | "Heart Line" telephone counseling service established. |
| 1988 | Apr. | First issue of Rekishi Kaido inaugurated. |
| Oct. | PHP Editors Group, Inc. established. |
| 1989 | Feb. | PHP Institute of America, Inc. founded. |
| Apr. | Founder of PHP died at 94. |
| Sep. | PHP Scholarship Program started. |
| 1991 | Nov. | Training and Development Center opened. |
| 1992 | May | Correspondence Courses started. |
| 1996 | Nov. | The 50th Anniversary celebrated. |
| 1997 | Feb. | The Proposals for Dealing with Japan's Financial Crisis announced. |
| 1998 | Apr. | First issue of Konosuke Matsushita magazine inaugurated. |
| 2000 | Apr. | First issue of JAPAN CLOSE-UP magazine (English monthly) inaugurated. |
| Oct. | Electronic book publication inaugurated. |
| 2003 | Apr. | First issue of PHP Business Review magazine inaugurated. |
| 2004 | Sep. | Long selling book The Path sold over 4 million copies. |
| 2005 | Nov. | Membership website Konosuke Matsushita Juku established. |
| 2006 | Feb. | Mobile Business started. |
| 2008 | Dec. | The awarded Japanese book, Jyoseino Hinkaku sold over 3 million copies. |
| 2009 | Jan. | Japanese book Rikyuni Tazuneyo awarded. |
| 2010 | Oct. | Unique website Matsushita Konosuke. com established. |