Short answers, pulled from the story.
John Willard Marriott opened a root beer stand in Washington, D.C. on the 13th of August 1927. He and his wife Alice ran this small business from their home before expanding to Columbia Heights.
Marriott International formed in 1993 when the parent corporation divided into two separate entities where one managed properties while another held ownership stakes. Host Hotels & Resorts emerged as the owner of real estate assets allowing the management side to focus on franchising operations.
Arne Sorenson became the first non family chief executive officer in March 2012. He led the company until his death on the 15th of February 2021 from pancreatic cancer.
Initially the company stated 500 million customers personal information was exposed but later updates reduced this number to less than 383 million affected guests. Hackers suspected to work for China Ministry of State Security targeted health insurers and security clearance files alongside hotel records.
The UK Information Commissioner's Office fined Marriott £18 million under GDPR laws following a massive data breach that occurred on the 30th of November 2018 involving former Starwood brands.