We hear a lot about heroes in this day and age. Accomplished athletes are seen as idols for throwing around a ball, and blockbuster fantasies portray individuals who can fly and use their incredible superpowers to save the universe.

However, in the real world, it's encouraging to know there are humble and hardly noticed heroes all around us. These selfless individuals have no desire to be praised or even recognized. They are a special group of human beings who are not only determined to accomplish what God has called them to do but sincerely willing to sacrifice their life so that others can live.

The following story is an example of one of these heavenly secret agents.

Irena Sendler was a Polish nurse and social worker who worked in the Warsaw health department during World War II. In a short window of time between 1942 and 1943, she along with a small band of co-workers led a courageous effort within the Warsaw ghetto to secretly smuggle at least 2,500 Jewish babies and children from facing the certainty of the German concentration camps.

She and her team were members of the Zegota, an underground organization established in 1940 by the Polish government for the purpose of rescuing Polish Jews. With permission from the Nazis to enter the ghetto to help segregate the city's 380,000 Jews, she came up with a plan to secretly smuggle babies and young children to safety. They used every idea possible to rescue the innocent, which included hiding them in toolboxes and under gurneys, sneaking them into ambulances, taking them through sewer pipes or other underground passageways, wheeling them out in suitcases and leading them out through an old courtyard that led to the non-Jewish areas.

She carefully recorded the names of the children on cigarette papers and sealed them in glass bottles, which she buried in a colleague's garden. After the war, the jars were dug up and the lists handed over to Jewish representatives. Attempts were made to reunite the children with their families but, sadly, most of the parents had perished in the Treblinka death camp.

Mrs. Sendler was arrested in October 1943 and taken to Gestapo headquarters, where she was interrogated to surrender information about the leaders of Zegota. She endured severe beatings, her legs and feet were broken, and she was eventually driven away to be executed.

In what many consider to be a miracle from heaven, a private deal was made between Zegota and her executioner, and she was released. Mrs. Sendler was later found unconscious along the side of the road and had to use crutches the rest of her life as a result of her injuries.

One of the names in the jars was Michal Glowinski, a professor of literature. He said, "I fondly think about her and owe my life to her."

With tears, Elzbieta Ficowska agreed, as she was smuggled out of the ghetto by Mrs. Sendler inside a large toolbox when she was just 5 months old. Mrs. Sendler was eventually nominated for the Nobel peace prize in 1997 and announced as the 2003 winner of the Jan Karski award for Valor and Courage.

Unlike the German industrialist Oskar Schindler, who saved more than 1,000 Jews by employing them at his Krakow factory and is widely recognized thanks to an award-winning book and film, Mrs. Sendler's story remained relatively unknown until a few years ago when it was discovered in America by a group of Kansas schoolchildren who wrote a play about it, called "Life in a Jar."

The word spread very quickly, and now the world is aware of her saving many defenseless victims of the Nazi ideology. She spent her last years in a Warsaw nursing home and passed away in 2008.

When interviewed, she sternly insisted she did nothing special. "I was brought up to believe that a person must be rescued when drowning, regardless of religion and nationality," she said. "The thought of being considered a hero irritates me greatly as I continue to have pangs within my conscience that I did so little. My emotions are overshadowed with the fact that my faithful co-workers, who also constantly risked their lives, did not live long enough to receive the honors that are now falling upon me."

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