Why is nancy pelosi election to speaker of the house so significant

From what I can gather I know that her election was so important because of her slim chance she had on being reelected as "Speaker of House".

Hope this helps lol

Explanation:

imma say false because i dont know anything about this.

the lines on a surface map are called isobars. isobars are lines of constant pressure which are measured in units called millibars. the numbers indicate the amount of air pressure, in millibars, that each line represents.