In earlier days, many building were erected in Washington, D.C. that paid homage to religion/faith. If those were being built today I have no doubt the ACLU would bring suit. But is it logical to think that people looking back 220 years to the First Amendment understand it better than people who were around within much earlier times?

Consider:
>> The cornerstone of the U.S. Capitol Building was laid by George Washington. In it is a box containing a number of documents, including a paper created by Daniel Webster, Secretary of State. It concludes with these words: “And all here assembled, whether belonging to public life or to private life, with hearts devotedly thankful to almighty God for the preservation of the liberty and happiness of this country, unite in sincere and fervent prayers, that this deposit in the walls and arches, the domes and towers, in columns and in tabletures now to be erected over it may endure forever. God save the United States of America.”

>> On the walls of the Library of Congress are many religious quotes, including: “What doth the Lord require of thee, but to do justly, and to love mercy, and to walk humble with thy God,” and “One God, one element, and one far-off divine event, to which the whole creation moves.”

>> Consider the Washington Monument. It is the tallest structure in D.C. because it is mandated to be so. On the very top of the monument is the Latin phrase Laus Deo, which means “praise be to God.”

This was all paid for by government money. Many more examples can be found here:
Evidence Carved in Stone