Are There Really Seven Continents? Nope...

There are actually 10:

1. North America
2. Central and Caribbean America
3. South America
4. Europe
5. Russia and the Caucuses 
6. Asia
7. India and Indoasia
8. Australia and Oceania
9. The Middle East
10. Africa

Some example "Say what?" questions and responses to them follow:

1. Why 10 and not seven? 
2. What about Antarctica? 
3. Regarding Russia—really? Isn't Russia a country?

1. Even culturally, nuances between—for example—Central and South America, with Central America already separated from South America by being a part of North America, exist. On the other hand, clearer-cut distinctions between Central America and North America exists.
2. The North and South Poles technically are not continents—as goes for the Arctic, so goes for Antarctica.
3. With 21 republics alone, Russia—unlike with the United States with the 12 states that became more or less provinces or districts—is more or less its own continent that includes the state of Russia, just as Australia and Oceania includes the state of Australia.

From http://ontheworldmap.com/russia/administrative-divisions-map-of-russia.html.

Notes:

1. In political science, "state" means a government and the territory acquired thereby. Nation states include states of nations (Greek "ethnos", plural "ethni"): e.g., the classical and modern examples of Israel, Greece, and Italy (Roma, which later expanded as the Imperium Romanum that forcibly co-opted several nation states; and now is much-smaller Italy with Italic states such as Tuscany co-opted in it).
2. Holdout Rhode Island did not become the 13th state to ratify the Constitution until 1790!
3. For the Abrahamic religious groups, there has to be a total of 10 continents. See Daniel 7, focusing on Daniel 7:7-24. However one interprets Daniel 7, the fourth beast and the 11th king has to arise from Jerusalem (cf. Deuteronomy 32:8-10 and Ezekiel 5:5) be different from the other beasts and kings. In fact, even a Medieval schema looked like this with three kingdoms—with formal, informal, and hoped-for co-options—and Jerusalem in the middle:

Originally On LinkedIn As a Commentary Sample Of Mine: A Correlation Between Backlash Against Columbus Day & Anti Semitism?

I'd like to see if someone will undertake a study on whether the increasing backlash against Columbus Day correlates with the recent increase in Anti Semitism—whether the Anti Semitism is intentional or unintentional, and whether it is subtle or brazen—after all, Cristoforo Colombo was an Anusi (Crypto Jew; "marrano"); and increasing exposure of evidence demonstrates this (not to mention that Anti Semites are also picking up on it outside of any context of Columbus Day, as hate-speech websites like Jew Watch show). Of course (and as I'm applying what I learned in my Political Research Methods class here), the following hypotheses would have to be considered:

1. H1: The increase in the backlash against Columbus Day correlates with the recent increase in Anti Semitism, and the Anti Semitism is intentional and subtle.
2. H2: The increase in the backlash against Columbus Day correlates with the recent increase in Anti Semitism, and the Anti Semitism is intentional and brazen.
3. H3: The increase in the backlash against Columbus Day correlates with the recent increase in Anti Semitism, and the Anti Semitism is unintentional and subtle.
4. H4: The increase in the backlash against Columbus Day correlates with the recent increase in Anti Semitism, and the Anti Semitism is unintentional and nonetheless brazen.
5. H5: The increase in the backlash against Columbus Day inversely correlates with the recent increase in Anti Semitism, whether any Anti Semitism would intentional and subtle otherwise.
6. H6: The increase in the backlash against Columbus Day inversely correlates with the recent increase in Anti Semitism, whether any Anti Semitism would be intentional and brazen otherwise.
7. H7: The increase in the backlash against Columbus Day inversely correlates with the recent increase in Anti Semitism, whether any Anti Semitism would be unintentional and subtle otherwise.
8. H8: The increase in the backlash against Columbus Day inversely correlates with the recent increase in Anti Semitism, whether any Anti Semitism would unintentional and brazen otherwise.
9. ∅: No correlation between the increase in the backlash against Columbus Day and the recent increase in Anti Semitism exists.

The methodology might be something like the following:

1. Surveying at least 1,000 Pro-Columbus Day Americans regarding a possible correlation between the increase in the backlash against Columbus Day and the recent increase in Anti Semitism.
2. Surveying at least 1,000 Anti-Columbus Day Americans regarding a possible correlation between the increase in the backlash against Columbus Day and the recent increase in Anti Semitism.
3. Interviewing scholars whom study the Inquisition, Christopher Columbus, the Age of Exploration and Colonialism, Native Central Americans (such as the Tainos), and Jewish history and genealogy (including Crypto-Jewish history and genealogy)
4. Interviewing Anti-Columbus Day activists, Pro-Columbus Day activists, and employees and volunteers of organizations regarding Jewish history and gemealogy—including Crypto Jews (e.g., JewishGen—whose database I, I mention for the sake of disclosure, use to research my own family history, since I am a descendant of both Ashkenazi and Sephardic Anusim—and the Society For Crypto-Judaic Studies).

The sample groups, of course, would have to be as randomly formed and equal in number as possible; and the study would be a mixed-type—that is, a quantitative-and-qualitative—study. As for the literature review, it would have to include scholarly and non-scholarly literature on:

1. The Inquisition
2. Christopher Columbus
3. The Age of Exploration and Colonialism
4. Native Central Americans
5. Jewish history and genealogy
6. Anti-Columbus Day activism and activists
7. Pro-Columbus Day activists and activism

Of course, I wouldn't be undertaking the study because I have an inherit bias in the subject and a hard time with both Excel and advanced statistical math (as my "C" grade in my Political Research Methods and my necessity of taking Statistics twice demonstrates), as well as a hard time with Literature Reviews (as I type with only finger on each hand due to Cerebral Palsy and have OCD/Anxiety-related angst over the already-angst-inducing pedantry of the MLA, the late Kate Turabian, and other citation zealots). My inherit bias, meanwhile, is demonstrated in this hypothesis:

"I stand by what I stated re Columbus, Caribeaños Nativos, and the Holocaust—also, I don't recall Jews mitigating, making light of, or denying the horrors of what Columbus did. In fact, a ben Anusim by the name of Bartolomé de las Casas worked to help and pursue justice for mistreated Americanos Nativos in his own day, which followed the day of Columbus."

Therefore, I've set up as much of the study as possible—may a professional researcher undertake the rest of the study, even if he or she gives me no mention concerning or other credit concerning the study.

By the way, Bartolomé de las Casas was indeed a ben Anusim.