Semachoth, chap. 9.

It is unlawful for one to enter a banqueting-house for thirty days after the death of a relative; but he must refrain from so doing for twelve months after the demise of either father or mother, unless on the behest of some higher requirement of piety.

Ibid.

But I know not whether there are thirty righteous men here and fifteen in the land of Israel, or vice versa.

Chullin, fol. 92, col. 1.

Thirty days in a year are equivalent to a whole year.

Niddah, fol. 44, col. 2.

“Moses, thou didst say unto me, ‘What is Thy name?’ And now thou dost say, ‘Neither hast Thou delivered Thy people at all.’  Now shalt thou see what I will do to Pharaoh (Exod. v. 23, vi. 1), but not what I am about to do to the thirty-one kings.”

Sanhedrin, fol.  III, col. 1.

When Rav Deimi arrived at Babylon, he reported that the Romans had fought thirty-two battles with the Greeks without once conquering them, until they allied themselves with Israel, on the stipulation that where Rome appointed the commanding officers the Jews should appoint the governors, and vice versa.

Avodah Zarah, fol. 8, col. 2.

Manasseh did penance thirty-three years.

Sanhedrin, fol. 103, col. 1.

Balaam was thirty-three years of age when Phineas, the robber, slew him.

Ibid., fol. 106, col. 2.

For thirty-four years the kingdom of Persia lasted contemporaneously with the Temple.

Avodah Zarah, fol. 9, col. 1.

Abaii has said, “There are never fewer than thirty-six righteous men in every generation who receive the presence of the Shechinah; for it is said (Isa. xxx. 18), ‘Blessed are all those who wait upon Him.’” The numerical value (by Gematria) of Him, is thirty-six.

Sanhedrin, fol. 97, col. 2.

The sons of Esau, of Ishmael, and of Keturah went on purpose to dispute the burial (of Jacob); but when they saw that Joseph had placed his crown upon the coffin, they did the same with theirs.  There were thirty-six crowns in all, tradition says.  “And they mourned with a great and very sore lamentation.”  Even the very horses and asses joined in it, we are told.  On arriving at the Cave of Machpelah, Esau once more protested, and said, “Adam and Eve, Abraham and Sarah, Isaac and Rebekah, are all buried here.  Jacob disposed of his share when he buried Leah in it, and the remaining one belongs to me.”  “But thou didst sell thy share with thy birthright,” remonstrated the sons of Jacob.  “Nay,” rejoined Esau, “that did not include my share in the burial-place.”  “Indeed it did,” they argued, “for our father, just before he died, said (Gen. l. 5), ‘In my grave which I have bought for myself.’” “Where are the title-deeds?” demanded Esau.  “In Egypt,” was the answer.  And immediately the swift-footed Naphthali started for the records.