Answer:
Allan Sandage
Explanation:
Allan Sandage is an american astronomer that has undertaken extensive efforts to evaluate Hubble's constant rate of universe expansion.
in the beginning of his career in 1958 , the primary focus of Allan is to evaluate the Hubble's constant rate.
He used many different techniques to determine the distance to several galaxies. From these many different calculations, average value of Hubble's constant was about 50 km/sec/megaparsec.
Colombus and his followers began the process of the Exploration of Americas
Columbus was an italian explorer who completed four voyage across the Atlantic Ocean. He and his followers discover the Existence of America in 1492 during these voyages
The answer is John Adams
Abigail Adams told him to “Remember the Ladies”.
Between 5,000,000 and 10,000,000 Chines citizens are Muslim.
