Summarize the following text on the history of the periodic table:

The modern periodic table of elements emerged from the work of several scientists in the 19th century. In 1869, Dmitri Mendeleev, a Russian chemist, published the first widely recognized periodic table. He organized the known elements by increasing atomic weight, and grouped them into families with similar properties. Mendeleev left gaps in his table, anticipating the discovery of new elements that would fit into the missing spaces. Over the next few decades, new elements were discovered that validated Mendeleev's predictions, adding further credibility to his periodic table.

Meanwhile, other scientists like Julius Lothar Meyer were working on similar classifications. In 1913, English physicist Henry Moseley made a crucial discovery that the properties of an element depended on its atomic number, not its atomic weight. This provided the basis for the modern ordering of elements in the periodic table. Over the 20th century, more elements were discovered, necessitating the expansion of the periodic table to accommodate them.
Summarize the following text on the history of the periodic table:

The modern periodic table of elements emerged from the work of several scientists in the 19th century. In 1869, Dmitri Mendeleev, a Russian chemist, published the first widely recognized periodic table. He organized the known elements by increasing atomic weight, and grouped them into families with similar properties. Mendeleev left gaps in his table, anticipating the discovery of new elements that would fit into the missing spaces. Over the next few decades, new elements were discovered that validated Mendeleev's predictions, adding further credibility to his periodic table.

Meanwhile, other scientists like Julius Lothar Meyer were working on similar classifications. In 1913, English physicist Henry Moseley made a crucial discovery that the properties of an element depended on its atomic number, not its atomic weight. This provided the basis for the modern ordering of elements in the periodic table. Over the 20th century, more elements were discovered, necessitating the expansion of the periodic table to accommodate them.
user
In the 19th century, Dmitri Mendeleev published the first widely recognized periodic table, organizing elements by increasing atomic weight and grouping those with similar properties. He left gaps for undiscovered elements. While others worked on similar classifications, Henry Moseley's discovery in 1913 that properties depended on atomic number, not weight, provided the basis for the modern ordering. As new elements were discovered in the 20th century, the periodic table expanded to accommodate them.
assistant
Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: Please summarize how Asian American and Pacific Islander Heritage Month was started based on the text below: 

History
A former congressional staffer in the 1970s, Jeanie Jew, first approached Representative Frank Horton with the idea of designating a month to recognize Asian Pacific Americans, following the bicentennial celebrations.[19] In June 1977, Representatives Horton, and Norman Y. Mineta, introduced a United States House of Representatives resolution to proclaim the first ten days of May as Asian-Pacific Heritage Week.[20][21] A similar bill was introduced in the Senate a month later by Daniel Inouye and Spark Matsunaga.[20][22]

The proposed resolutions sought that May be designated for two reasons. For on May 7, 1843, the first Japanese immigrant arrived in the United States.[23][24][25] More than two decades later, on May 10, 1869, the golden spike was driven into the first transcontinental railroad, which was completed using Chinese labor.[23][24][26]

President Jimmy Carter signed a joint resolution for the celebration on October 5, 1978.[20]

On May 1, 2009, President Barack Obama signed Proclamation 8369, recognizing the month of May as Asian American and Pacific Islander Heritage Month.[1][27]
Response: A former congressional staffer with the idea approached a representative about it in the 1970s. In 1977, a resolution was introduced in the House and the Senate, and the President signed it in 1978. However, that resolution was only for the first ten days of May. It wasn't until 2009 that the whole month of May was named Asian American and Pacific Islander Heritage Month.

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.
