Kum 1840 atang 1960 (kum 120) chhunga America President-te zinga thil thleng inmil (coincidence) mak tak:

 Kum 1840 atang kum 20 dan zela America President thlan tlinte hi President hna an chelh lai ngeia thi te an ni tlat mai hi a mak ve khawp mai (President dangte erawh chu an tan tawh loh hnua thite an ni). Chung mite thlan tlin an nih kum chu: Harrison kum 1840-ah, Lincoln kum 1860, Garfield kum 1880, McKinley kum 1900, Harding kum 1920, Roosevelt kum 1940, leh Kennedy kum 1960-ah.

William Henry Harrison hi America President zinga thawk rei lo ber a ni a, President office a chelh atanga thla khat velah Pneumonia natnain a thi. President hna chelh rei bertu chu Franklin D. Roosevelt (1933-1945) hi a ni a. A term li (4)-na a chelh atanga rei vak loah a thi. President hna thawk rei lo ber leh thawk rei ber inkar hun chhung hian kum zabi khat a awh a ni. Tichuan America sorkar chuan kum 1951 atang khan mi pakhatin President hna a zawnin Term 2 bak a chelh thei lo vang tiin dan a siam ta a ni.

Heng zawng zawngah hian President Abraham Lincoln leh President John F. Kennedy chunga thil thleng inmil hi a mak chungchuang bik hle a ni. Lincoln-a chu kum 1860-ah thlan tlin a ni a. Kennedy chu kum 1960-ah thlan tlin a ni (*President office hi '61-ah an chelh). An pahnih hian Charismatic mi ve ve an ni. Armed force-ah an thawk ve ve a, an thawh chhan pawh civil rights chawisan duh vang an ni. An pahnih hian President hna an chelh laia thah (assassinated) an ni. Lincoln-a thattu hi kum 1839-a piang a nih laiin Kennedy-a thattu hi kum 1939-a piang a ni ve thung. A thattu te hi chhim (south) lam mi ve ve an ni a. President-te hi Zirtawp (Friday)-a thah an ni a, thah an nih lai hian an nupuite an awm ve ve bawk. Heng President 2-te hi thah an nih hma hian an kalna hmun turah hian kal lo tura hriattir (warn) ve ve an ni. An thih hnua an aiawhtute hming hi a in ang leh chiah a, Johnson tih ve ve an ni. Andrew Johnason chu kum 1808-ah a piang a, Lyndon Johnson chu kum 1908-ah a piang ve thung, mak ang reng tak chu a ni.

Heng America President ropui tak pahnihte chanchin atang hian hma lam hun kum za dang min thlirtir a. Kum 2060-ah tunge rawn President ang? President Lincoln-a leh Kennedy-a te chunga thil thleng inmil mak tak ang hi a thleng ve ang em????