Semantics was also known as significs.
a. true
b. false

It is false that semantics was also known as significs.
Significs encompasses semantics, but it is closer to semiotics than semantics, because it studies signs, whereas semantics deals with the meanings in language more.

Kennedy organized his speech chronologically using past, present, and future references. His past reference is to our forefathers and the founding of our country on rights of freedom: "For I have sworn before you and Almighty God the same solemn oath our forebears prescribed nearly a century and three-quarters ago. . . . And yet the same revolutionary beliefs for which our forebears fought are still at issue around the globe . . . ."

His present reference discusses the issues of his time: "we offer not a pledge but a request: that both sides begin anew the quest for peace, before the dark powers of destruction unleashed by science engulf all humanity in planned or accidental self-destruction."

His future reference gave American's and the world a goal: "Finally, whether you are citizens of America or citizens of the world, ask of us here the same high standards of strength and sacrifice which we ask of you. With a good conscience our only sure reward, with history the final judge of our deeds, let us go forth to lead the land we love . . . .