When I was reading The American Pageant by Thomas A. Bailey, I came across this sentence:
These common convictions deeply shaped the infant colony’s life. Soon after the colonists’ arrival, the franchise was extended to all “freemen”—adult males who belonged to the Puritan congregations, which in time came to be called collectively the Congregational Church.
I usually see "over time" and here the writer is using "in time". Then I start doing research on "in time".
According to this thread,(https://www.quora.com/What-s-the-difference-between-in-time-with-time-and-over-time)
I’ll just add that there are occasions when “in time,” although indeed often implying a deadline, can also be used synonymously to “with time” and “over time” to allude to a gradual process:
“In time, you will learn to appreciate the benefits of hard work.”
“In time, you will come to understand why we made that decision.”
So, "in time" and "over time" seem to be synonyms.
Then I have checked COCA.
"In time came to" gets 3 hits.
a town that in time came to include seven churches, an equal number of saloons
Yet each action reshaped the debate and in time came to be seen emphasis miner as necessary if not inevitable
catering to a glamorous clientele that in time came to include the Duke and Duchess of Windsor.
"Over time came to" gets 4 hits.
whose party over time came to adopt similar reforms --
the dispersed letters over time came to form a shield,
in the Democratic party had the opposite effect on its rival, which over time came to be seen as more hospitable to religious traditionalists
urban bourgeoisie within the hegemonic party indicates that political choices by this party over time came to serve the interests and ideologies
What is the difference between "in time" and "over time"? Is there a particular reason the writer of The American Pageant prefers "in time" here?