The correct answer to this open question is the following.
You forgot to mention or attach the lenses that you refer to in the question. However, we can answer is general terms.
When we talk about the term "lens" in research, we are referring to a specific perspective to examine the topic at hand or the study. We can use philosophical lenses, economic, organizational, social, or psychological theories.
So we do not what lens you chose, but whatever your choice was, this lens might change how you approach researching your topic, thus affecting the historical narrative, because that particular approach is going to offer you different sources, authors, perspectives, and research lines to be followed. Your historic narrative would suffer modifications because you will have so many approaches to include in your research.
The U.S politicians and businessmen worried about the foreign nations controlled economic development so they supported open door policy
If we look at the five principles of Islam, or the five pillars or the five fundamentals, belief practically ends with the first pillar of Islam. In other words, that affirmation that Allah is the only deity and that Muhammad is his messenger. After that, everything is action, is practice. The other four, i.e., praying, fasting, paying the zakat -- what I call a social tax -- and the hajj, involve action. Muslims are very action-oriented.
<span>latitude lines is an angle which ranges from 0 degrees at the equator to 90 degrees (north or south ) at the poles </span>