... America. Will the United States refuse a visa without an invitation letter and a record of going abroad?

The record of going abroad is indeed a factor in the embassy's examination, but whether the visa can be passed is not only related to this, but also related to the applicant's household registration, marital status, work, assets and other factors. Only these materials are good, and the possibility of passing is relatively high.

In fact, whether the visa is passed or not mainly depends on whether we can convince the visa officer that we will definitely come back after going to the United States. If the visa officer believes that we will definitely come back after going to America, he will give us a visa!