Excerpt from the land and the name bandini and warren there is no doubt that some bold explorer, crossing over from spain to mexico and enlisting under the leadership of the gallant cortez, sailed the unknown south sea (the pacific) and gave to the new land discovered by one of cortez's pilots the name of the golden island in this favorite story. this land, thought to be an island, is now known to us as the peninsula of lower california. the name first appeared in 1542 on the map of domingo castillo, and was soon applied to all the land claimed by spain from cape san lucas up the coast as far north as 44¼, which was probably a little higher than any spanish explorer had ever sailed. with danger from european interference no longer pressing closely upon the nation, president roosevelt in 1907 took a decided step in recognizing the importance of the pacific when he sent to that coast so large a number of the most modern vessels of the navy. in fact, the nation may now be said to have faced about, california becoming the front door of our country. what evidence do the authors provide to support the theory of how california was named? a) they say that the name appeared on a map in 1542. b) they compare earlier explorations to more recent ones. c) they state that president roosevelt recognized the name. d) they mention that california was once considered the back door of the country.