Mystery Theme #99 by ShapiroA

Fill in the two missing words from this snippet of a 1982 speech by Ronald Reagan: "... the march of freedom and democracy, which will leave Marxism-Leninism on the _____ _____ of history ..."

Chard is a cultivar, selected for its leaves, of what vegetable more commonly grown for a different part of the plant?

What adjective can refer to the geometry of positively curved space or to writing that is extremely succinct, even to the point of obscurity? (Its geometric opposite also refers to a rhetorical eccentricity, of a much more expansive sort.)

In Greek myth, Hercules' ninth labor required him to obtain a girdle belonging to what Queen of the Amazons?

Name the quasi-Indian dish (3 words), possibly invented in Scotland, which British Foreign Secretary Robin Cook famously identified as "a true British national dish... a perfect illustration of the way Britain absorbs and adapts external influences". Major ingredients include tomatoes (or tomato paste) and cream.

This word, from the Greek for "set of nine", can specifically refer to the ancient Heliopolitan pantheon of Atum, Shu, Tefnut, Geb, Nut, Osiris, Isis, Seth, and Nephthys.

This word traditionally referred to a barrel-maker, and has become a common surname shared (among others) by the author of the 1839 History of the Navy of the United States of America and an actor who played Howard Roark on screen. With the addition of a clarifying hyphen, this word might also refer to a member of a group adhering to the Rochdale Principles.

What is the three-letter initialism for the Chicago-based organization, formed in 1905, which originated the motto "An injury to one is an injury to all"?

This word (أمة in its original Arabic) commonly refers to the worldwide community of Islamic peoples. Contrary to popular belief (note: not actually a popular belief), Kanye West did not use this word at the 2009 MTV Video Music Awards to inform the Islamic community that he would let them finish.

Read with care: The rather odd spelling of the U. S. commercial name for the sedative methaqualone, introduced in 1965 and discontinued in the early 1980s, was meant to echo the name of what antacid then produced by the same pharmaceutical company?

The bell jar and the McLeod gauge are laboratory instruments used in the production and measurement, respectively, of what phenomenon?

My aunt Tillie, who is very choosy about what she does and doesn't like, is indeed appreciative of all twelve answers to this questionnaire, which exhibit not only a commonality, but every form of that commonality which is possible using the resources of Aunt Tillie's second language. What is that language?