Historical clue formulations

• The so-called "roof of the world" — 2024-04-12
• Where the Brahmaputra flows — 2024-01-13
• Himalayan land — 2022-07-25
• Area the Chinese call Xizang — 2020-02-16
• "Free ___" — 2019-02-10
• Lhasa's land — 2018-02-28
• Land bordering Nepal — 2016-12-25
• Terminus of the Qingzang railway — 2015-12-31
• "The roof of the world" — 2009-01-25
• Whence some spaniels and terriers — 2009-01-17
• High country — 2007-07-13
• Lhasa's land — 2006-03-13
• Land on a high plateau — 2002-10-05
• Source of the Mekong River — 2002-06-30
• Lhasa's land — 2002-04-29
• Lhasa's land — 2000-06-15
• Yak's home — 2000-04-19
• Shih Tzu's place of origin — 1999-08-26
• Dalai Lama's land — 1998-09-14
• Yak's home — 1998-05-15
• Whence the Brahmaputra flows — 1997-07-09
• Home of the 61-Across — 1996-10-15
• "Lost Horizon" setting — 1996-06-28