His sermons and letters document a clear preoccupation with Marian veneration.

The letters document the development of crucial aspects of Einstein's general theory of relativity, including all three predictions that were eventually verified by experiments or observations.

These letters and songs document an increasing tendency towards spiritualisation and a more poetic approach of piety.

The letters between Freud and Jung document the relationship between them; the difference in outlook between the two men is clear.

Passionate, eloquent and startlingly sexual, these letters documented Goldman's tempestuous love affair with Reitman, her manager and traveling companion.

The letters document her concern about the meeting and her relief after it took place.

Annie's laconic letters since then had modestly documented her steady progress in New York.

Their surviving letters document the continuing friendship and mutual trust between the spouses.

Other holdings include letters and diaries documenting women's everyday existence and revealing women's hopes, disappointments, and accomplishments.