What do Calvinists teach about the Election of mankind? Is it before or after the Creation?

Question

From this link:

Calvin also reminds us that Paul states that the love God had for us before the creation of the world had always been founded in Christ

From this link:

Calvinists believe that God picked those who he will save and bring with him to Heaven before the world was created

From this link:

Election is an act of God before creation

From this link:

Reprobation is the sovereign decision of God before creation

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From the sentences of the quotes above lead me to think that Calvinist teach that the U (from Unconditional Election) is before the creation

but because in my other question, there is a comment like this :
Neither scripture nor Calvin make any statements about mankind before it is created. It would be illogical to do so.

That's why I ask the question.

Answer 1

In the 1689 Baptist Confession of Faith, a historic Calvinistic faith confession that is a revision of the Westminster confession and used as a confession of faith by many reformed calvinist church today, state in Chapter 3 (Of God's Decree), Paragraph 5:

Those of mankind that are predestinated to life, God, before the foundation of the world was laid, according to His eternal and immutable purpose, and the secret counsel and good pleasure of His will, hath chosen in Christ unto everlasting glory, out of His mere free grace and love,¹¹ without any other thing in the creature as a condition or cause moving Him thereunto.¹²

11 Eph. 1:4, 9, 11; Rom. 8:30; 2 Tim. 1:9; I Thess. 5:9

12 Rom. 9:13,16; Eph. 2:5,12

So for your question What do Calvinists teach about the Election of mankind? Is it before or after the Creation? Mankind was elected for salvation before the creation