- November 2013
Key leaders from science, government, NGOs, and industry meet at Sunnylands to discuss the future of AIDS research
- September 2013
Sunnylands-Aspen Institute Task Force on Streamlining and Consolidating Congressional Oversight of the U.S. Department of Homeland Security releases report with recommendations for future.
- June 2013
President Barack Obama hosts President Xi Jinping of the People's Republic of China at an informal meeting designed to tackle substantive issues affecting the U.S. and China.
- April 2012
Discussions on math education take place at The Annenberg Retreat at Sunnylands with educators and government leaders from across the United States, along with representatives from the Gates Foundation.
- March 2012
The Annenberg Retreat at Sunnylands and the Woodrow Wilson International Center for Scholars convene a high-level retreat at Sunnylands with preeminent political, business, academic, and media leaders from the United States and Mexico.
- December 1993
Plans to donate $500 million to the American public school system, the largest gift to the public ever made in this country, are drafted at Sunnylands. The gift is announced in a White House Ceremony with President Clinton on December 17, 1993.
- March 1990
President George H. W. Bush holds a State Dinner for Prime Minister Toshiki Kaifu of Japan at Sunnylands.
- March 1990
The Annenbergs announce a record-setting gift of $50 million to the United Negro College Fund (UNCF) in a ceremony with President George Bush and UNCF President Christopher Edley at Sunnylands.
- January 1989
President Ronald Reagan signs the intent to pursue NAFTA and delivers one of his final radio addresses to the nation at Sunnylands.
- January 1986
President Ronald Reagan exchanges televised New Year's greetings at Sunnylands with Soviet President Mikhail Gorbachev.
- March 1983
Queen Elizabeth ll and Prince Phillip visit Sunnylands.
- January 1979
The mother and sister of Mohammad Reza Shah Pahlavi, Shah of lran, find a safe haven at Sunnylands.
- July 1976
Frank and Barbara Sinatra marry at Sunnylands.
- August 1974
President Richard Nixon visits Sunnylands following his resignation.
- January 1974
President Richard Nixon drafts his final State of the Union Address while visiting Sunnylands.
- December 1968
Walter and Leonore Annenberg welcome the Republican Governors Association to Sunnylands. President-elect Richard Nixon and California Governor Ronald Reagan attend.